Is there a way to check for models stuck inside models?(see attached images)

Hi All,

I am writing a paper toss-esk game and I'm having an issue with 2 of my models. Every once in a while something like this will happen:

http://i.imgur.com/QPQWkZk.png http://i.imgur.com/zczaSRd.png

I tried so much to prevent this and I can never 100% get rid of this situation. I was wondering if there is an easy way to check if an item gets stuck like this. If so then I could just give the user a re-do throw.

Any comments/questions/concerns? Let me know and I'll get back to you ASAP.

Thank you for the help Unity Community you guys always rock!

-Ethan