Snakes are sometimes perceived as evil, but they are also perceived as medicine. If you look at an ambulance, there's the two snakes on the side of the ambulance. The caduceus, or the staff of Hermes, there's the two snakes going up it, which means that the venom can also be healing.
I don't think my wife likes me very much, when I had a heart attack she wrote for an ambulance.
Right now, my job is that I'm like an ambulance chaser. I've got to look for movies with white guys falling out of them.
When my dad was badly weakened by the flu and my mom wanted to call an ambulance to take him to the emergency room, he wouldn't go unless he could shave first and change into a nice shirt and a pair of slacks.
During every race, an ambulance trails the riders around the course. You know that sometimes you are going to end up in the back of that ambulance.