I am not very sure about this to be honest. 

In lazy days I normally waste a lot of time actually doing
nothing, but watching stupid videos or something. But normally
I do not like distracting voices when working. Or to be honest
I am not a fan of loud and unnecessary noises anyway. 

Specially when my someone I don't like is making a disturbing
noise. I normally get pissed off and just shout at them. But 
I came to notice that actually when there is something like 
that happening, for some reason I unconsciously focus more on
the work.

I have experienced this many many times, but I am not sure what
is the real reason behind this. I don't know why my brain reacts
like that for some things like that. But it's interesting. So 
now I kind of prefer a certain level of a distracting pressure 
when working. 

I mean I don't just go ahead and create a distracting environment
I just don't try to change the environment, when there are already
distracting factors.