Hold the Train

So my dog has fleas
 I don't mean to be such a tease
 But I can't say what I mean
 (Without parentheses)
 We all thought you were someone else's friend
 And called for you to stand at either end (Now)
 I took one step back to fit you in
 I've been walking backwards ever since
 I have banged my head
 Suffice it to say that I've bled
 The restroom was too far
 So I used a police car
 The five of us were fifty short of bail
 So I spent my graduation day in jail
 I thumbed the page and slit my skin
 And all the world came pouring in
 Cordless telephone
 My greeting is only a groan
 You say you've changed this time
 But you just changed your mind
 I don't care so much for rock and roll
 Since it gave my friend a bloody nose
 (Well, actually, it was me)
 I'm asking will you marry me please
 I've got to get some use out of my knees
 You can say that your biology's to blame
 And pay the neighbors' kids
 To hold your train
 Hold your train
 Hold
 Your