Maybe I'm too much of a goodie two shoes, but yeah, I take carts back...or at least to one of the cart corrals provided. Couple of reasons. One is I don't like dings created by runaway carts. The other is we use handicapped spots because of Cindy's MS. Understandably, always carts near those, so I put carts in the usually nearby corrals to free up parking spots for those who need them. Oh..and if I'm going to need a cart, I often grab one left and take it back to the store..
Hey, by putting one in a corral, those cart kids still have the job, right?
(Change of topic edit) If I were writing motorsport headlines: A NASCAR finish at Sebring!