Arachnophobes - are you able to maintain some degree of calm when a spider lands on you?

Just a little bit ago I was curled up in my comfortable bed, when a big, black spider fell off of the ceiling and landed on my arm. In the split second it took for my brain to register that it was a spider, I was already out of the bed, flailing around, holding my breath, and frantically slapping my own arm.

I lost the spider.

And it occurs to me that if I did not immediately react like this: “bug!bug!bug!getitoff!GET IT OFF!” I might not have lost the spider, and I might be back to being comfy in my bed… but there is definitely no logical reasoning behind it. The reaction is instant.

So, fellow arachnophobes- can you keep your calm when a spider lands on you? And if you can, have you always been able to do so, or did you learn to chill out?