They usually explode don't they.I've done that myself and ended up with a frozen solid bottle of soft drink which takes ages to thaw out and it's not the same when it does.
As a kid I use to put half bottles in the freezer for 1-3 hours and then shake them and you would end up with a slurpee. One day it must of froze around the lid and when I undid it the gas came out after I had the cap off and exploded in my face. Soft drink all over me and the kitchen.