I hate hands like these..

[The_Bankroll]

having smallish underpairs on low boards like these in a re-raised pot. it's really a way ahead/way behind situation, but I figure I'm probably behind most of the time. this is the first hand I had seen villan re-raise.

PokerStars No-Limit Hold'em, $0.25 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($27.25)
UTG ($17.05)
Hero ($40.40)
Button ($23.60)
SB ($24.05)

Preflop: Hero is MP with T, T.
1 fold, Hero raises to $1, 1 fold, SB raises to $2.75, 1 fold, Hero calls $1.75.

Flop: ($5.75) 6, 3, 4 (2 players)
SB bets $2.5, Hero calls $2.50.

Turn: ($10.75) K (2 players)
SB bets $5, Hero folds.

Final Pot: $15.75

[JL]

I hate those spots too....
...but a re-raise at those stakes usually means business.

this is the first hand I had seen villan re-raise.

Therefore, you are ahead of only AK on the flop, and beating nothing on the turn so no worries.