They generally have loud and amusing conversations with people who are too fevered to understand what they are going on about to the amusement of nearby call takers. I think they do manage to fob off a good percentage of our Green 2s, so you should be grateful for that. As far as I can tell, no-one actually chooses to do TAS, though, they generally end up there because they are too injured/pregnant/on the verge of mental collapse to work in an ambulance any more. I imagine it would get very frustrating dealing with *just* people who thinking they are going to die from stomach ache, so I don't envy them.