It's one of the reason why in general straight shaving is more comfortable than cartridge shaving: with a cartridge blade, the hairs tend to clog up the space in between the blades, hairs stick out, etc. and you gash your face open (well, I did). If your whiskers aren't too thick, you can probably rinse out a two day beard, no prob, but when the hairs get longer, clogging is almost inevitable, rinsing out doesn't work since the hairs just fold around, get twirled up and whatnot.
Although for straight shaving, the first two, three months you'll also gash your face every now and then, less and less regularly, because of your technique (PRESSURE and ANGLE!).
"I came here to kick ass and chew bubble gum, and I'm all out of gum"