Why did that kid have to kick me in the nuts?

I'd had it up to here with that paper boy of mine, who's always late with my Sunday newspaper. Last Sunday, I waited for him on my doorstep and started tapping my watch in an exaggerrated fashion as he approached me on his bike. Before I could say, "You're late!" he got off his bike, walked over to me and kicked me right in my balls. "Why?" I thought to myself as I writhed on the ground, "Why did that kid have to go and kick me in the nuts?"