Shorties do the dumbest things. Part of their strategy is that because they have less money, they often get people to fold by going AI in a pot that represents 25% of their stack. A full stack can't push, because the pot is comparitively small. So you have to realize by nature for shorties its EV+ to push a wider range. They often just do some stuff.

PokerStars No-Limit Hold'em, $1.00 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($127)
Hero ($312.50)
UTG ($116.55)
MP ($74.30)
Button ($33.85)

Preflop: Hero is BB with K, Q.
2 folds, Button raises to $4, 1 fold, Hero calls $3.

Flop: ($7) 5, 7, K (2 players)
Hero bets $4, Button raises to $16, Hero raises to $308.5, Button folds.