I have lost 2 stable gifts in the past 10 minutes in between clicking to accept them and them getting to my gift box.
I've lost a few, too.
I think bicker is right- people are definitely going to start posting what they need. Now whether or not any of my friends will even notice...

I can send nails and horseshoes. A friend sent me a harness and when I clicked "send a thank you gift" it automatically sent her a harness.. so I guess we can send other horse stable items that way, too.
