Questions about some hands I played at the Orleans

[Snowcrash]

I was playing 2-4 at the Orleans and theses 2 hands bothered me. Tell me what you think of these plays.

First hand:
Loose maniac calls the blinds and its folded around to me.
Im in mid postion and raise it up to 12$ with pocket JJ's. Loose maniac calls . He's in almost every hand and bets out a lot.

The flop comes 6 [img]/images/graemlins/spade.gif[/img] 3 [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/club.gif[/img]

He bets 20$ and I raise him to 50%.

He calls my bet.

4th brings the A [img]/images/graemlins/club.gif[/img]

Now he checks to me. It alarmed me a little, his sudden check.

I checked behind and the river brought 10 [img]/images/graemlins/club.gif[/img]

He now bets out 110$ dollars into the pot.

I folded. What do you think????



Next hand.
Im 1 from under the gun. I get dealt KK. An old man who is extremly tight raises it up to 15$ and I repop him to 30$ and get a caller from mid postion and the old man calls my bet, letting me know he dont have AA.

Flop comes Q [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/club.gif[/img]

The old man moves all in for 300$ more.

What should I have done???