Well, if you bleed all over the windscreen at least you have fresh wiper blades to remove it.
I prefer to just leave the blood fully visible and drive around that way.
Which for some reason, has triggered an old memory from the oil patch days. Working morning towers offshore in a really crappy schedule, where we, as contract employees had to do the 12 hour shifts, 1800-0600, daily, not being able to bunk on the rig and had to drive an hour each way back and forth from our yard to catch the boat, had just ended a shift and were driving home.
Three of us in the car all grumpy, me and the driver in front, and this Mexican guy with an attitude that was always mean and grumpy anyway in the back. Earlier in the shift, he hurt himself somehow and had blood all over his white tshirt and didn't have a change of clothes. The driver, who was a speed demon anyway, just wanted to get home and get to sleep, so he was doing like 90+ on the freeway weaving in and out of traffic.
Lights and sirens. We figured we were just getting pulled over for speeding, then the next thing you know, the cop looks in the back at the Mexican guy, shouts to his partner, and guns are drawn. Two other cop cars show up, we are all cuffed and sitting on the side of the freeway. Apparently a few hours before, there was a murder in the area, and our Mexican coworker - with the blood on his shirt - matched the description of the killer.
Me and the driver are cooperating, but this moron bloody shirt is copping an attitude with the cops. It was only because the cops were cool that they called both our employer and the rig to verify our whereabouts that we didn't end up in the pokey awaiting investigations. Funny story looking back, but boy did me and the driver want to kill bloody shirt after it was all over.