RuthlessOptimism

I have two jokes that I learned awhile ago. 1.) "The number you have dialed is imaginary, please hang up, rotate your phone by 90 degrees and try again". 2.) "A mathematics professor finished his very long complicated derivation with a flourish of the chalk on the chalkboard saying: "and so this result is obvious". A student stood up in class and asked: "Is it obvious?". The professor opened his mouth to speak then stopped, he began again and stopped again. He began to stroke his beared, eventually pacing back and forth across the front of the room muttering to himself, eventually he left the room and came back with a coffee, when he was finished his coffee a twinkle entered his eye he looked up with a smile on his face and triumphantly said: "yes"."