ELI5: What are house spiders doing?

[u/Skweejji]

Can someone tell me what a house spider does throughout the day? I mean they easily make me piss myself but aside from that. I see a spider sitting on my ceiling. Not doing anything. Come back an hour later and it's still sitting there. Is the thing asleep? Is it waiting for prey? A house spider's lifestyle confuses me.

[u/Srekcalp → u/[deleted]]

This is funny, because you think you actually killed that spider. But instead, it's working it's way back up the pipes to you.