Why does my dredging keep falling off?

I've tried a few recipes that involved dredging, all of them were flops. I haven't cooked with it in a while so I can't provide any recipe specifics (other than flour > egg > breadcrumbs/panko) but are there any common mistakes that I might be making? Any other general tips and tricks would be appreciated. via /r/Cooking http://ift.tt/2EEYMqk