thank you all for your input, I have taken each suggestion into careful consideration and come to the conclusion that unfortunately, none of them will work -
the std's won't work because he's my godbrother he knows me well enough to know that i wouldn't have one
being myself wouldn't work for the same reason because he knows me and still wants to go out (so buzz off applebrain
)
the dinner won't work because we're going to the movies, and the movie is harry potter, so there's really no spoiling that can be done there
the phone thing won't work because we'll be in a theatre and i'm not allowed to have it on
and complaining about past relationships won't work because they are non-existant, which he knows