Thanks Le Ann and Steve!
I think I'll continue to do all as usual with the exception of wearing gloves when I clean his space...unless anyone knows something concrete...
BTW Sugar stays very clean, as he goes swimming in the ponds every few days
(go to dailytexanonline.com, then to "Museum of Ephemerata" in "multimedia" and the video opens with sugar's guided swimming in our pond)
Cheers, Happy Slithering