rules for big items and not paying attention

[joshman]

is this the official ruling? I think this issue must have been brought up in tournament. Almost every game I play somebody puts down a big item when they already have one on the table by accident. how is it handled? are they forced to sell or give away big item? I thought cards played cant be picked back up?

also a similar issue can up while trading. a trade happened where a player traded for a two handed weapon while currently being cursed with tiny hands. Is trade reversed because they cant carry 2 handed weapons or do they drop because of the curse?

the third question the example is if you already have a big item like the 2 handed big rock and you play a second big item and try to get rid of the rock. can the player without the big item refuse to accept the rock forcing you to keep it as your big item?