After chatting up the cute girl you "just met" in a bar for a while and asking her number, the worst possible response isn't "No". It's "You already have it". #LFMF
Should this happen to you, you could always make a joke about how you got her cell number, and now you're asking for something dumb like her fax number. Hey, it's a better idea than "oh crap, I'm sorry!"
After chatting up the cute girl you "just met" in a bar for a while and asking her number, the worst possible response isn't "No". It's "You already have it". #LFMF