Rectum? Probably not; the rectum is inside the body, and you probably couldn't get to it. The anus? The anus is the ring of muscle that is the exit from the rectum. If he/she maintains some basic hygiene and cleanliness, and isn't ill with ebola or cholera or dysentery, it's probably safe to do. Kinky, perhaps, but safe.
no don't even try.
Yes. Dry ice is safe to put in drinks. It's only carbon dioxide (the same thing that makes soda fizzy) in it's frozen form. However, it is not safe to ingest. Ingestion of dry ice would result in a hospital visit. Also, putting in too much dry ice will cause the drink to freeze and be undrinkable.
It is ok to eat ice but only ice that you put only in drinks.
Dry ice is not poisonous. In fact, lots of people put it in punch at parties for a cool effect.
poka
NO
It would depend on the size of the balls, and the size of the rectum in question.
No. Use warm water. I can't remember what cold water or ice does but it makes it worse somehow.
uh....no
You must insert it into the animals rectum.
yes put your finger in your rectum and twirl