I don't understand why Max is turning his food bowl over.He never used to do this!Lately,whenever I come home from work,I find his food bowl upside down,and,all his food all over the floor!I know he must be mad at something,otherwise,why would he do this?I always leave him alone when I go to work,it's nothing new.I make sure he has enough water and food,and a clean wee wee pad,so why is he being bad lately?He was also knocking over the recycle garbage can with all the bottles and cans in it.He was pulling on the garbage bag that over hangs the garbage can,and knocking it over! I bought a different garbage can that has a way for the bag to stay inside the garbge can and not hang over,so far,problem solved for that!I just don't know why he insists on turning his food bowl over!HELP!!