The gum would have been chewed by one person and the wheels on a grocery cart would have been rolled over all kinds of bacteria filled surfaces so I'd chew the gum. But only if I was told to do it or they would kill me. Otherwise, no.
@coffeedimplez We weren't allowed to chew gum in class. So I felt under the table if there was any other gum around and there wasn't, so I put my gum under the table so he wouldn't find out. When he went out I took the gum and popped it back in, but this gum was vastly different. I must have no checked it properly enough.. it was the single most horrifying experience of my life.