<human>: A little background - A few years back my husband bought me a key ring attachable pepper spray device because I often worked till after dark and the area was a little sketchy.  Better safe than sorry, right?  Well, since I carried it in my purse, and it had a safety mechanism so that it wouldn't go off unintentionally, I never had any problems.  Then one day when I had my keys out to open the door I dropped them and the device broke open.  It was easy to snap back together and I didn't give it a second thought.

Fast forward to today.  My husband borrowed my car so I gave him the keys (pepper spray still attached).  He kept the keys in his pocket and apparently getting banged around in his pocket made the device crack open again.  So he reaches in his pocket and pulls out this little canister that says warning but all it is is a can with a little nozzle.  He thinks that it is part of a project for the office, like a pressurized air can, and leaves it on the table with other things.  His boss sees it and asks what it is - nobody knows except it has WARNING in big red letters.  So...his boss pushes down on the nozzle, luckily pointing it away from everyone, but it still releases a huge burst of pepper spray into their small office.  Needless to say they had to vacate the area for a little while.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Loaned husband pepper spray which broke open and his boss mistook it for pressurized air and pepper sprayed their office.