Lately my Bailey has taken to licking everyone's feet. I have two boys age 12 and 8, he goes after their feet most, and if they are wearing socks, he trys like crazy to get them off. It doesn't matter who, and does not matter what your feet are doing, he will fight like mad to get to them and start licking. Is this normal? LOL aside from tickling everyone, he doesn't do any real harm.