No, I squish flies all the time. However, as an empathetic human you should probably feel a bit squeamish about inflicting unnecessary suffering on them.

It might be nice not to slowly boil them alive

Not if you need to, and your mind feels bad about it to keep the balance.

But if you do it for fun, I would keep my distance from you and stay close to a pike.

You should maybe feel bad about how much time you are wasting squishing them, compared to using one of those electric tennis racket bug zappers. They clear a kitchen of fruit flies in minutes, while giving you a most satisfying sound as you send them to the great fruit fly beyond.

Electric zappers make insects explode and spray atomized guts all over the space spreading disease

They don't. At least mine doesn't. I've cleaned up the remains, they are intact but with burned sections.

I think getting rid of them quickly outweighs germs flying off them. Regardless I don't think they are known for spreading disease.

Why do you squish fruit flies? They're harmless,

They lay eggs on my fruit, and in my plant pots... Not cool