I have to say, this thread may seem trivial to some but I for one love the replies. Before joining this site we only had contact two or three other APBT owners to compare notes with about the wacky stuff our dogs did. Stress yawns, hugging and butt wiggles may not be exclusive to the breed, but its cool to learn other Pit owners have experienced the same. What about spontaneous bursts of energy where the dog runs like crazy for several minutes? Trudi would do this quite often where she would suddenly just start running through the house, usually with a toy in her mouth. She would rip from room to room and if you happened to be standing in the hall or one of the rooms she was racing through, she let out a little 'woof' as she passed by you. She would sometimes do this as we were playing with her, other times on her own for no apparent reason other than to run. Now, Meia is starting to do the same.