Well…it’s my favorite of the few I’ve heard — i.e., my sample space is small.
An engineer, a physicist and a mathematician are staying in a hotel while attending a technical seminar. The engineer wakes up and smells smoke. He goes out into the hallway and sees a fire, so he fills a trash can from his room with water and douses the fire. He goes back to bed. Later, the physicist wakes up and smells smoke. He opens his door and sees a fire in the hallway. He walks down the hall to a fire hose and after calculating the flame temperature, distance, water pressure, trajectory, etc. extinguishes the fire with the minimum amount of water and energy needed. Later, the mathematician wakes up and smells smoke. He goes to the hall, sees the fire and then the fire hose. He thinks for a moment and then exclaims, “Ah, a solution exists!” and then goes back to bed.
Note: This joke and category had to be established, and quick, due to the hint of a suggestion of an implication of a veiled threat communicated through dark foreboding eyes and tilted head and through a dark menacing voice that said ‘you have to have jokes on your blog. you have them, right…?” And as you might expect — or then again, as you might not expect — the demand that I have humor on my blog, with threats of who-knows-what lying behind the them, came from someone interested in philosophy as a college major. Geez! Not an Aristotelian advocate of Eudaimonia, that person. (See also the entry on Virture Ethics in the Stanford Encyclopedia of Philosophy…which entry I have not read yet…so it might be good, but it might not.) Not an adocate of Lockean rights, that person. (See also the entry on John Locke….or on the IEP.) Maybe a Nihilist? A Machiavellian? A Hobbesian in his/her metaphysics of man (See IEP or SEP)?