Ultrasonic thickness meter for cylinder walls

damn, some of you need led to water and be forced to drink lol
...So this Camel won't drink any water and the owner asks how he can get him to drink. The guy at the watering hole tells him to suck the camels *** while he lower his head into the water. "Hmm, sounds like it'll work, lets give it a shot". He starts sucking the camels *** while the watering hole guys are falling over laughing. The owner starts to gag and yells over the tail, "pull his head up a little, I'm sucking up mud!"