He may be "treat" trained. He knows if he rings the bell and "performs" he gets a treat.
Sometimes after one of ours uses the doggie door and get a treat for going potty --- the others quickly run out the door and immediately right back in...and get in line for a treat...for going outside. Yup, they're smart...they did in fact "go outside" even if they didn't potty...they went outside and think they get a treat for it.
Silly pups!
__________________  Kendra |