@joanneg36 I think the pill comparison comes from the fact that both can involve clots, albeit different types. It's not a comparison I've used personally.
I think with regards to your question on how people weigh up risk, my personal frustration with the AZ situation is that it doesn't have to be used. I posted on threads in the first week of April when data was presented by government on the risk of covid by age vs risk of clots by age. As if no other vaccine is available.
It's also the feeling of helplessness. I can't continue to live the way I have lived with covid precautions. I am by nature risk averse (still washing my shopping) and it's not sustainable. Hence I did feel forced into the AZ vaccine but am deeply deeply unhappy about it.
Thinking about the odds... the risk in your 40s is 1 in 100,000, roughly the capacity of Wembley Stadium, so imagine you were at the stadium. I think of it this way, if presented with something awesome, like being told one of you in there would win a million quid, I'd think it's a slim chance, but it's got to be one of us, and that could be me. Equally if you said come to this event at Wembley [aka have the vaccine] but at least one person in the audience will definitely die, would you go?