Just wanted to add that it's true that, rationally, there should be practically nothing in their ranges that beats you. However, especially at 2nl, you will regularly find irrational people who find it clever to
slow play a
set or AK in this
spot or are so
passive that they will just min bet every
street with their nutty hands, or those who play reverse poker and won't commit a significant portion of their
stack until they are sure they have the best hand, or until the
river when they're "safe from a
flush or
straight draw"... I've even come across some who just
call or
check otr with the
nuts 
Then there is also those who make these absurd calls, like calling a
PSB all in ott with a naked
gutshot or whatever.
So you can't just assume the rationality of your opponents and you can take that into account when you do your ranging by assigning 1 or 2
combos of nutty hands to
villain even if they
don't make sense to you. Of course when you see someone do that kind of stuff, you should make a note.
I remember a thread on 2p2 where a live poker pro got into a hand with an old guy who
limp/reraised preflop vs
hero's
KK.
Hero just called and the
flop came the likes of AK7tt. The old guy bet and
Hero took a few seconds to think when the old guy showed him his aces and said "you better just
fold" because he was afraid of a
flush draw and preferred to just pick up the
dead money in the pot.
The story is just to give you an idea of how people can be thinking backward about the game.