I hate car mats. I never use one on the drivers side (so it's always pristine when I sell lol)... it harks back to having a mat trapped on the accelerator of my first car; god knows how, probably hooning it and it slipped on, but it happened and scared me for life, lol!
That's the reason they have clips now
Don't trust no clip
Also, probably a lot less likely with the Golf's accelerator designed how it is... not risking it though, haha.