When snails escape

I want everyone to take a look back into your childhood and remember that phase when you liked to catch bugs. It used to be you would get a jar and poke 50 holes in the lid, then stuff the jar with some leaves and a twin and then find EVERY bug in your moms garden until it was full.
Now-a-days it is a whole different ball game. I have been watching my three nieces every Tuesday this summer. They are 12, 8 and 5. Not bad they usually end up entertaining Cooper all day. It works out very nicely. A couple of weeks ago the youngest brought over a sour cream container with 20ish potato bugs in it. That is cool! So I proceed to tell her there a ton of snails in my yard and she can have as many as she wants. *Special side note:she already told me she likes to torture them. After lunch I took her out in my garden and we found a big snail. She put some leaves in this new age bug cage and tossed the snail in.
A while later I am in my office, Cooper is sleeping, and the girls are watching a movie. All the sudden I hear Kammi start to say something I can't make out because it is super high pitch and whiny! As I round the corner I hear "Lexi its gone, Its not here, what did you do to it." The "cage" that was once contained a snail is empty and sitting on my couch. This is not a serious thing but the girls start freaking out. So I go in to investigate and start moving pillows around on the couch and there he his!
I almost busted a gut. I was laughing so hard. Here is the escapee!

I wish you could see it better but there is a wonderful snail trail all the way up the pillow. Thank goodness for microfiber!