We ask for BBBJ, therefore we put ourself at some risk right from the get go...
After that it depend on how much you like to daty. But if you feel the need to put a rubber on for a BJ, you should have no problem sacrifying DATY anyway...
I may not be the reference in that, as i only done it to 3 women total, and i need to feel extremely confortable to do so with that person, but licking a plastic bag is not something i would do for sure...