Got gum?

This afternoon, I walked over to the gas station to buy a cup of coffee. I knew I had at least a dollar's worth of change in my coat pocket, so I wandered over, filled the cup and walked up to the register.

As I pulled out my handful of change, I noticed there were blue, sticky bits plastered to all the coins. WHAT IS THIS?

I tried to cover up my unruly pocket full of quarters and dimes by hovering over my hand while picking out the correct coinage.

Apparently, I left a stick of gum (unchewed, thank you) in my pocket awhile back. After all the abuse of jingling change, the gum couldn't handle the pressure and EXPLODED all over.