I have purchased two Klein bottles from Cliff on different occasions and they're resting in my trinkets cabinet. Both came with notes from Cliff that, as stupi

I have purchased two Klein bottles from Cliff on different occasions and they're resting in my trinkets cabinet. Both came with notes from Cliff that, as stupid as this sounds, made me feel special. Cliff, not sure if you're still reading this thread but you are an absolute treasure and one of the people that made (makes?) Berkeley such a great place.