Another Fun Night of Bar Poker

Why is it that in some tournaments it seems that the worst hand almost always seems to win? Last night was one of those nights. It seemed that the best hand could not win.
Last night was one of those classic bar poker nights, when chasing with bad cards was getting paid off. Time after time I watched bad players call raises and all ins with weak hands and end up the winner. Here are a few examples.
Player moves all in under the gun with A-2 offsuit. Gets called by A-K off. Q-Q moves all in. A-K calls. Flop brings a king. Board ends up with 4 suited cards and A-2 wins with a flush.
Player calls all in with A-8 suited. All in has A-K. River is an eight.
One player all in with two callers no side pot. Flop brings out a King. Both check flop. Turn brings two clubs on board. Player bets 3000. A big bet into a dry side pot. Other player insta calls. River an ace of clubs. Caller bets out 6000. Bettor calls. Player had called 3000 with a flush draw and hit.
There were many more. I actually lost 3 times to 3 outers. It was an interesting night.
Another what were you thinking moment from last night.
Someone raises 3 times the big blind pre flop and gets several callers. Flop is K-Q-10. Player makes a continuation bet. Two callers. Turn is a blank. Someone else makes a big bet. One call with initial bettor folding. River is an ace. Turn bettor makes a big bet. Other player calls. Bettor turns over J-5 suited for a straight. I am assuming it will be a chopped pot. Other player shows me their cards and mucks their hand. Called all the way with A-8 and couldn't fold to the obvious straight when hitting the ace on the river. Some people just never seem to learn. At least on most nights I end up winning their chips!