So this isn't really a question but more of a reminiscence post. When my family first bought Dominion we didn't completely read the rules regarding Curses. As a result we erroneously thought that a curse could be given at any time, just by using a plus buy--to other players. We also thought that when a curse came up in your pile you could give it to any other player of your choosing.
Example:
Player 1 has 2 buys, $6. Buys a gold and a curse, gives the curse to Player 2.
Player 2's hand includes estate, gold, silver, curse, smithy. Player 2 gives the in-hand curse to Player 3).
It actually made curses a very different and very dynamic part of the game. All of a sudden cursing other people became very dangerous because they would end up giving the curses back to you when they came up in opponents' hands.
This shows the importance of reading the rulebook all the way through, but also shows how house rules can add a fun twist. We haven't played that way in a long time, but I think I might bring it back to life for a night some time soon.