Let's pretend that I am 
a very lightweight belayer.

And my climber takes a huge fall

which drags me up into the wall.

And if I panic and let go 
the brake side of the rope

to protect myself.

While my grigri gets trapped 
in the first quickdraw.

Is this gonna kill my climber?

I already made a video showing that

if you press on grigris cam

and not hold the brake side of the rope

that might end up fatal.

So let's see if quickdraw can also

unlock the grigri's cam.

If you get trapped in it.

If I am pulled

so hard...

Wow!

I mean that was like 
one shot experiment...

Though yeah well if you move maybe...

You will be going down...
I still filming.

No, no. Keep filming. 
Yeah, it goes down.

So if I would not be holding this...

Yeah, if I don't hold this...

The climber goes to the ground.

So yes, quickdraw can
unlock grigri's cam.

But to make this experiment even better

I wanted to see what 
happens in a dynamic environment.

Where i would fly up and 
jam into the quickdraw.

Unfortunately i'm not that lightweight

to fly all the way from the ground

into the first quickdraw.

So instead I decided to clip myself 
with a separate quickdraw

just below the bolt,

so I would need to fly less.

Pulling. 
Yeah.

Ah, no. The rope got pinched...

Pulling. 
Yeah.

Oh, no!

Whoa, the rope... oh, man...
This is crazy what happened to the rope.

So first few attempts 
the climber was 'saved'

by the rope getting trapped

between the grigri and the quickdraw.

Or in some cases even 
wrapping around grigri's handle.

Which you definitely
don't want to happen.

But then we got this.

OK, pull it.
Yep

Whoa!

Yep, Yep.

All my backup went in.

So if i would not have this hand on,

my climber would be on the ground.

Attempt number two.

I'm gonna give you

one meter of

backup rope.

Yeah.

Whoa.

Yeah.

So here you go. Another reason why you

should never let go 
the brake side of the rope

even if you're belaying with the grigri.

And if you want more life-saving tips

check out this playlist.

Or if you're more geeky person

this one is for you.

And to all the good people

who want to support me,

what I'm doing here on this channel,

consider visiting my website.

It has different ways how you

can contribute.

And thank you so much.

And enjoy climbing.