After how many ranked losses do you stop playing?

I generally hop to normals after two, play a few, then hop back in.

If I'm streaking, I try to play until it ends.

I never start. I'm happily unranked. If it's a matter of advice, though... I'd suggest stopping after 3 or so, taking a couple days off League, and then coming back. Three strikes is an ill omen that often precedes a hard losing streak.

I stop after my ADC caitlyn builds GA first item.

If I get over 2 losses in a row I stop playing ranked for the day. If I feel tilted I stop playing ranked for a few days.

its depends more on my mental state after the loss, if it was a dumpster loss and I'm tilted I quit after 1. Bring tilt into a 2nd game almost never ends well for me

2-3 losses in a row then switch accounts