Between
Poor Kermit suffered a lot during the first season, with various monsters interrupting his demonstrations. But noone did a more thorough job of trashing the place than Beautiful Day when Kermit talked about "that far-out, groovy, nifty, keen, really fun word, BETWEEN!"
Kermit demonstrated between with a ping-pong ball, donut, and a Beatle record stacked on a table, how one object was between two others.
BD came along and ate everything (being the Beatle fan I was, I was upset when he ate the record. However, if it was a copy of the Let it Be album, I'd give him mine too!) while Kermit shook with fright under the table. BD soon reduced the table to a pile of splinters. When there was nothing left to eat, he even started to nibble on Kermit's foot, until our green friend managed to get away. Thankfully that's as close to cannibalism Sesame ever got.