lapse in logic

my entire foot was throbbing, so i called my doctor-friend.
"hey, i hate to be that girl who calls you with a health concern, but i just don't know who else to ask."
"what's wrong?"
"it's my foot. it's been hurting since last wednesday, and it's not getting better."
"well, let's see, you mentioned that you went dancing saturday, and sunday too, right? have you been dancing since then?"
"um, i also practiced monday, and i'm going to practice right now."
"and you're asking me why your foot isn't getting better?"