Really? Like... clean your bits of hair out of the sink once? Or maybe sweep stray garlic skin off the kitchen floor once? I thought so, daredevil.
As you can sense, I do not like when people proclaim they will try anything once, when clearly they would not. I realize they are using this statement in regards to an adventure (jumping out of a plane, threesome etc.) but the attitude behind it is irritating AND annoying. Don't say you are going to try anything once, just do it.
[end rant]