Is my snake musking me?

I got a new snake on Saturday from a reptile show. He is three years old and around three feet long. He is extremely calm and hasn't bitten me yet. He got a fuzzy the day we got him as recommended and ate it fine. Yesterday my sister was handling her fine and dandy and nothing happened at all. But earlier that day i had him on the carpet for a split second and he "went". It didn't really smell and it looked normal. Today I picked him up and sat on the couch with him, then he stretched across my legs and just stopped. I wasn't sure what he was doing but i realized he was using the bathroom again. But i'm not sure if he was musking me or defecating. He is so mellow and not jumpy at all so i leaned more towards he was defecating but i'm not sure. I know i shouldn't have done this now, but i put him back in his tank and went to clean up. I read that handling can start to get his system going end it will often happen and if i put him in an extremely shallow warm bath he will go and will be "safe" handle. Is this true? What else can i get him to do to stop if their is a way? And i was wondering if i would be able to say be able to let him slither on my bed (with me right by him of course) without any accidents? He's a beautiful "normal" morph and his name's Optimus Prime. In case anyone was curious :) Thank you!