Answer:
What can't you see, hear or feel, until its too late. What shadows love, and shopkeepers hate?
You are having a bad day if 12 peers deem you to be this
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
A dagger thrust at my own heart, dictates the way I'm swayed. Left I stand, and right I yield, to the twisting of the blade.
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.