OK, so I'm branching out occasionally into a bit of 25NL (I am primarily a SnG player).

Anyway, I sit down at a recently formed table, and this happens first hand. Routine fold I guess, I just thought it was a bit bizarre, so I thought I would get some of your views...

PokerStars No-Limit Hold'em, $0.25 BB (7 handed)

BB ($10)
UTG ($25)
Staresy ($25)
MP2 ($9.75)
CO ($13.05)
Button ($4.80)
SB ($3.65)

Preflop: Staresy is MP1 with 5, 7. UTG posts a blind of $0.25. Staresy posts a blind of $0.25.
UTG (poster) checks, Staresy (poster) checks, 1 fold, CO calls $0.25, 2 folds, BB checks.

Flop: ($1.10) A, 7, 3 (4 players)
BB checks, UTG checks, Staresy bets $0.75, CO raises to $12.8, BB folds, UTG folds, Staresy ????