I just got a new ball python, and every time someone holds him, within five minutes he pees on them! Is this normal? Why is he doing this?

This is the third BP I have had, and none have them before this guy have ever doen this. Is he stressed, or is it just coincidental? He has eaten twice already since I have had him, and I didn't handle him at all the first week.

This is a little irritating, so just wondering if there is some reason for this behavior, or if I just unfortunately got a snake that likes to relieve himself on people.

Thanks,