I haven't tried the bitter apple either but I am just noticing a problem and I think Buddha taught Hefner to chew because he never did it before. When we were camping he was chewing on the arms of the wooden daybed!! I find I can usually distract him with something he is allowed to chew on but I may be picking up some of that spray.
Chewing on the walls is different. How does she do it? Is it the edges? |