Bailey has a sticky chin target. It's a very strong behavior and I use it multiple times per week. It is incredibly useful and I'm so happy I taught it.
Buzz had a "lick-bop-slurp-bop-???" behavior from when I attempted to teach a sticky nose (yes-nose, not-chin) target. I took video of trying to "clean it up" without any kind of definitive marker. I am amazed at how people can train without a marker! I got some really nice solid nose touches but they were rarely repeated because of the lag time between behavior and reward. It was entertaining and ridiculous!
I did a session with him tonight using the light as a marker again. I got a lot of the same crazy not-desirable behaviors but I also got a lot of really nice nose touches with duration. He was clearly getting the point!
And this is the most recent session tonight (#3 overall).
A few more sessions and I'll have a real sticky nose target behavior!