This is a good example:
Knives are cheap and occupy little space in your pockets. Ties while professional-looking and mandatory in some jobs, they can be used against you and could be mortal. I think the manager may have ended up with serious neck damage on this one. A decent one-handed or assisted opening knife would have solved the situation quickly.
I just got this baby recently:
Boker Plus Kalashnikov. Built more like a T-34 than the AK, it is sharp and comes with a glass breaker, seat belt cutter and oxygen tank valve opener. For South Florida and all the bodies of water next to roadways, I think it is a good choice to have in the car. In my case it would be a triple redundancy but I tend to overdo safety things. 😀