But I digress

A quote, useful for ending a particularly strange conversational tangent.

Example :
"...and that's how little Timmy Masters defeated the space invaders with nothing more than a tinfoil hat and a pair of chopsticks... but I digress."

What someone will say to cover for the fact that they've been rambling on about something he knows the listener doesn't give a rat's ass about, in a desperate attempt to look intellectual and steer the conversation towards another topic at the same time.

Also a regular column by Peter David, on the back page of The Comic Buyer's Guide. The highlights were collected into a book in 1994.

Highly opinionated, very witty, hugely funny, and frequently the source of much bickering, hissing and spitting in the comics industry.