There was this one time I saw a live human head sitting on the counter of a bar. It looked at me and said, "Hi, my name's Ed. If you buy me a drink I'll grow a body. So I did, and poured it in his mouth. Sure enough, he sprouted a body. "If you buy me another beer I'll grow arms." I was still shocked by what I had seen, but I bought another beer and poured it in his mouth. Sure enough, he sprouted arms. By now everyone in the bar was transfixed, amazed by what they had seen. "If you buy me another beer I'll sprout legs." I figured I might as well, and sure enough he sprouted legs. "One more beer and I'll have hands." Same as before, I bought the beer and poured it into his mouth . . . and out came the hands. "One last beer and I'll have feet." I bought the beer and poured it into his mouth . . . and he disappeared. Poof, just vanished.
The bartender came over and leaned in and said philosophically, "Ed should have quit while he was a head."
I've carried that story with me since about 1972, when I heard it in middle school.