I was veggie for 30 years and am now vegan.
I find it hard to kill anything. This stems from childhood when I'd get upset about kids stamping on ants, pulling wigs off flies etc. I've always been upset by putting down ant killer, seeing my cats bring in creatures and even seeing ants scurrying when I move the washing line pole! It was probably inevitable that as a child I'd become veggie.
Worming, defleaing, nits and mosquitos are my exceptions.
I'm spooked out by spiders but respect them as living creatures and find their skills incredible. I have to leave them if I see one in the house. I'd never dream of killing one.
The only way to avoid animal cruelty is to live naked on a mountain top drinking stream water according to a Times article from the 1980s!
The clothes we wear, the products we use, the restaurants we dine in, the bread we eat (I was reading how many field mice are killed during this process) can harm and impact on creatures. It is impossible to avoid.
So yes, we are all hypocrites and I would never claim to be completely animal cruelty free (my cats eat meat for a start) but I do think that I have always been sensitive to these things when friends might just swat a fly or kill a spider. But it isn't a competition to see who's the most devout because sadly, humans do kill insects intentionally and unintentionally (how many 'bugs' might we step on in the park. Should we stay home?).