Evaluating our Hypothetical Hands on Fourth Street

The next round brings the following cards:

Andy

Bob

Chuck

Ed

Greg

Andy now has a three-flush to go with his three-straight, but the news isn't very good. Bob also has two hearts showing, and he holds the Ace of hearts, too; in the unlikely event that they both make heart flushes, Bob's will win. Ed also caught a heart this round, which means that hearts are in relatively short supply.

Worse still, one of the sevens that would have paired Andy is now gone, as well as one of the eights. In sum, Andy now has a hand he should throw away, unless everyone checks and gives Andy a card for free. Unfortunately, the optimist in Andy still sees the three-flush and three-straight, and ignores the visible cards whose unavailability will make it tough for Andy to improve.
Although the Ace of hearts didn't really improve Bob's hand, he was still happy to see it, because if Bob remembers that Frank folded an Ace on the first round, he now knows it's impossible for Ed or Greg to have a pair of Aces. Remembering allows Bob to play more aggressively, because his pair of Queens now feels stronger. Bob might have to face a pair of Kings at some point, but he no longer has to worry about Aces.

Chuck shouldn't have been in the hand to start with, but now he has caught a "lucky" Seven to give him an open-ended straight draw. What Chuck doesn't and can't know is that this ISN'T an open-ended straight draw, because all the Eights are in other players' hands. Only a Three can help him, and there are only three of those available.
Ed now realizes he is sunk. There were only two cards that could have helped him, one Eight and one Ace, and they both fell into other players' hands.

Greg isn't too happy with the Eight. He was hoping to pair up, and didn't, and now knows he can't make a pair of Aces. The only consolation he can find is that no one else can make a pair of Aces.