Letters to Lexi… Dear Lexi. I have fleas, any advice.. signed scratchy Dear scratchy…… I have found the surest way to ride yourself of fleas is to..Have your humans fix popcorn. (Without butter ). knock over the bowl, quickly lay in the spilled corn… Fleas love popcorn… They eat the popcorn. they get thirsty, they go get a drink of water, and you get up and leave, works every time… Lexi