I’m a cheater.

Exchange between Mark and me, last night:

Me:  Hey, you’re reading my book.

Mark:  So?

Me:  That’s the reason I keep accumulating piles of books on my table.  You take them.

Mark:  Oh, that’s the reason, is it?

Me:  Um, yes, something like that, anyway.

Mark:  You know what the real reason is?  You cheat on your books, that’s why.

Serial monography, maybe?