Sorry for making it sound bad, but its the truth and this is REALITY!!! People have actually died out on the ramp in the past while on duty.
Ramp areas aren't exclusive in that distinction.
I find that, even though you may exercise common sense and a "heads up" approach, there are quite a few people who you depend on to keep your safety in mind. They will sometimes not, though - the entire airline industry is very much "on the clock," people tend to sometimes concentrate on getting the job done as quickly as possible, not giving consideration to people on the ramp who's safety they put at risk. Ramp guys are simply "not seen" - and thus, not thought about - by people "upstairs," whether that be CSAs in the terminal or the flight crew.
You work a lot on trust - trust that the pilot will do his job properly, trust that the CSAs won't run you over with the bridge, trust in your crew to look out for each other, trust in maintenance.... and so on.
For example... the only injury I have really sustained in my time on the ramp (besides sore muscles) was a cut to the head caused by maintenance or the Captain bleeding off the flaps while parked at the gate. The flap came down while I had my back turned, I didn't notice it, and I ran into it. Luckily, I got away with a couple of stitches and some lost blood