Hershey had always been a healthy man, albeit somewhat rotund. Recently he had contracted a severe stomach bug that prevented him from eating almost everything.
When word got around, his friends asked Hershey's mother whom they all called "Mamaleh" about his condition.
"Nu, Mamaleh? Is it true that Hershey has lost a lot of weight?"
In true fashion, Hershey's Mamaleh, replied, "Well, I don't wanna say he's thin, but when he wears his red necktie, he looks like a thermometer."