Jesse James' dog Cinnabun missing ... again

jesse-james-cinnabun-3.jpgThese are not happy times for Sandra Bullock's (soon-to-be ex?) Jesse James.

Not only has James been exposed by alleged mistress Michelle "Bombshell" McGee for cheating on his wife while she was filming "The Blind Side," but now the West Coast Choppers star's beloved dog Cinnabun has gone missing -- again.

The tracking company that monitors microchips in pets, HomeAgain, tells TMZ that a report was filed Monday claiming Cinnabun had gone missing.

Long Beach residents who live in the vicinity of West Coast Choppers (where James kept his pooch) received emails from HomeAgain saying, "I am asking for your help in finding my lost dog, Cinnabun."