A Real Class Problem: The Dog Who Leaps Off the A-Frame

This lesson follows a coach through one common problem in a beginners' class, from noticing it to a plan the handler can follow at home. The team is invented, but the situation is one every agility coach meets. You will see what the coach checks first, how they work out where the problem comes from, and how they rebuild the behavior without making it worse.

Read it as a way of reasoning. The details will change with every dog, but the order of the questions stays the same.

The case

Priya and her three-year-old collie cross, Bo, are in your beginners' class. Bo is fast and keen. On the A-frame he has started leaping off from high on the down side, clearing the contact zone completely and landing hard. Priya is frustrated. She wants to hold his collar at the bottom, or tell him off when he jumps, and asks whether she should just practice the A-frame more often until he gets it.

Working through it

Step 1: Stop the rehearsal

The first thing the coach does is take the full A-frame out of Bo's session. Every leap from height puts impact on his front legs and shoulders, and every repetition teaches him that leaping is what the A-frame is. More repetitions of the same thing will make it stronger, not weaker.

Step 2: Ask whether something has changed

The coach asks Priya a few questions. Has Bo always done this, or is it new? Has anything else changed, such as stiffness after walks or reluctance on stairs? Has the equipment or the ground changed?

If a dog's performance changes suddenly, the coach considers pain or discomfort before training, and suggests a vet check. A dog may leap off because the descent hurts, or because the surface feels slippery. In Bo's case, Priya says he has done it since he started and seems as keen as ever, and the coach checks that the A-frame surface is grippy and the frame stable. That points toward a training question rather than a physical one, though the coach stays alert for any sign that it is otherwise.

Step 3: Find out what Bo actually learned

The coach asks Priya to show how she taught the A-frame. It turns out that Bo learned it mostly by following her as she ran alongside, with a treat thrown ahead when he reached the bottom. No criterion was ever defined for the down side. From Bo's point of view, the job is to get to the end quickly, where the reward lands, and leaping is quickest.

Watching a run, the coach also notices that Priya accelerates away as Bo reaches the top. Her motion tells him to drive forward. So the handler's cue and the lack of a clear criterion are both part of the picture.

Step 4: Choose a criterion and split it

The coach helps Priya choose a contact behavior and define it precisely. They settle on a stopped position (two back feet on the board, two front feet on the ground) because it is clear for a beginner handler to reward and check. Then they split it:

1. On a plank lying flat on the ground, Bo learns to run along it and stop in the end position, with the reward delivered in that position.
2. The position is practiced from different angles and with Priya in different places, still at ground level.
3. The behavior moves to a lowered A-frame, where the club's equipment allows it, with the same reward placement.
4. Height is added gradually, only as fast as Bo keeps the criterion.
5. Priya's motion is added last: first standing still, then walking, then running, one step at a time.

Step 5: Coach the handler

Priya needs as much help as Bo. The coach explains why holding the collar or telling him off would not teach Bo where to put his feet, and could make the A-frame unpleasant for him. They practice her reward timing without the dog, then with him. Her homework is the plank work only, a few short repetitions at a time, with the A-frame off limits until the next class.

What the case teaches

The coach did not start by drilling the obstacle. They stopped the unsafe repetition, checked whether something physical or environmental had changed, found out what the dog had actually learned, defined a criterion, and rebuilt it in small steps with the reward in the right place. Then they taught the handler, because the handler's motion was part of the problem.

That order (safety, health, history, criterion, steps, handler) works for most performance problems in agility, from missed weave entries to dropped bars. Our guide to agility equipment safety and course design covers the equipment side. The next lesson looks at safety and scope more broadly: injury prevention, young dogs, hot days and knowing when to refer.