What do you do if you dropped a bar of soap into your toilet?
Answers:
Pick it up, and then wash it.
Don't worry about your urine. It is sterile until it leaves the urethra. So I guess, if your toilets are clean, it shouldn't be a big problem.
If you don't feel comfortable with using this bar of soap, then throw it away.
Life is too short to worry about small stuff.
Other answers:
take it out, then wash it off as well as your hands, and don't forget to flush, then put the lid back down;) LOL
take it out, then wash it off as well as your hands, and don't forget to flush, then put the lid back down;) LOL
get some rubber gloves an go after it
you"ll probaly have to pull the stool & retrieve it from the underside.