Ducking to Avoid Getting Hit?

[Ink Hyaena]

I was in a match earlier and spent like 2 minutes staying hidden to watch something I've never seen before. Someone was ducking to avoid getting hit whenever Billy swing at them. Is this a thing?? Or a glitch? I've never seen that happen before. It's not like Billy was bad either, he'd manage to hit all of us at least once, but this one survivor would duck quick the moment Billy swung and it somehow missed while he was being chased. I tested it out with another friend and he only missed me once. Otherwise, all other hits landed. Something with the hitboxes going on?

[Monarch]

I'm gunna go with it was a glitch cause even if you could duck I am sure the killers "aim assist" would lock onto you either way. (or maybe lag?)

[Ironsights]

It is a thing, but its quite risky. Since they reduced the size of the hitboxes, if you are crouched, and if the killer is swinging high, your box can register as being undert he killer's attack, hence a miss.

You have to know the killer is swinging high (look at his face, make sure he is looking at least head level forward, possibly a touch higher) and then you have to time it so that you are right next to him (literally being walked into) and crouched before he releases the attack button. IF it works, it feels great, if not, you take a hit and are still nearby the killer afterwards.

The two times I see this done the most are
1-Crouching near me while I hook someone. This prevents me from seeing you unless I look down at my feet, and even if I blind swing, unless I have looked down some it will miss. Can make for some cheeky saves.
2-Done to avoid the Billy's chainsaw, because there needs to be more ways to dodge that...