Mystery meat

My backpack smells like meat.

I don't know why this is, as I haven't really been storing anything in it other than books and school papers. Maybe a pen or two. Occasionally a sachet of mocha coffee. No meat, though.

My house doesn't smell like meat. I don't smell like meat! (I asked my husband and Katie both to smell me and tell me if they detected any meat-like odors, as that's what friends and spouses are for. They pronounced me meat-smell-free, though they both agreed that my school bag had a distinct meat-licious odor.

Is some meat bandit playing a mean trick on me?! I'm disturbed. Why?!