[Loser]

A physicist an engineer and a mathematician are all staying in the same hotel.

Late at night, a fire breaks out in the physicist's television. He wakes up and see that the television is on fire. He then finds the room's sink and a bucket (originally for ice). Making a reasonable estimate of the heatmass of the burning television he calculates the necessary amount of water to douse the flames, measures it out in the bucket (estimating again), unplugs the television and dumps the bucket on the television, putting the fire out. He then goes back to sleep, satisfied that his vocation allowed him to solve this problem.

The engineer also wakes to find his television on fire. He also finds the bucket and the sink. He fills the bucket to over-flowing and dumps the entire quantity on the fire, right after kicking the television's power cord out of it's outlet. He fills another bucket and dumps it on the television, and throws the whole mess out the window. He goes back to bed and sleeps, because he has work to do the next day.

In a freak coincidence as you will only find in such stories, the mathematician also wakes during the night under similar circumstances. He sees the burning television, the bucket, and the sink and satisfied that there is a solution, he goes back to sleep.