Ok, I know a few engineering jokes.
An engineer, a lawyer, and a psychologist are walking through a park. As they are walking, they see two squirrels run across a fence and into a hollow in a tree. Moments later, three squirrels run out of the tree, and the walkers stop to ponder the incident. The psychologist explains ?The tree must be deeper than we could of seen from our vantage point?. The doctor argues ?The answer must be medical, the two squirrels reproduced?. The two look at the engineer, who pauses in thought for a short time. Eventually he says ?If another squirrel enters the tree, it will be empty.?
An engineer, a mathematician, and a physicist are attending a convention. Because the convention is really low budget, the attendees were placed in the cheapest hotel in town. All that is in the rooms is a old bed, a small black and white TV, a bathroom, and a bucket. Late at night, after the three went to sleep in their separate rooms, the television in the physicist's room lit on fire. Sleepy, he woke up, and noticed the fire. He rushed, grabbed his notepad and pencil, and estimated the BTU output of the fire. With a few quick calculations, he filled the bucket with the exact amount of water to put out the fire, and dumped it on, and it went out. Shortly afterward, the TV in the engineers room lit on fire. Awakened by the smell of smoke, the engineer saw the bucket, and rushed to fill it with water. Dripping some of the water from the overfilling bucket on the trip back from the bathroom, the engineer doused the fire, and extinguished it. About an hour later, the television on the mathematician's room lit itself on fire. When the mathematician woke up, he looked at the bucket, the fire, and the bathroom. Satisfied that he had found a solution, he went to sleep, and died in the fire.