It doesn't at all. We'll give each other hell on the yard a play practical jokes and all, but when it comes time to work, that's when we become all business. One of our things is fireworks.... On a slow day if someone gets caught napping there might be a pack of blackjacks involved. Personally, my favorite is a bottle rocket under the bathroom door. Keeps things interesting. We will booby trap things, tie old hubcaps to your truck axle, hide your car, all kind of stuff. But no one gets hurt. Thats the biggest unspoken thing about us.