during very important and urgent moments, when you need to get something done as soon as possible, you happen to meet people who work very slowly, and because of their inefficiency, you miss the timing
does not look like an emperor even when dressed in a dragon robe', a metaphor to describe someone who is lacking the dignified air / imposing mannerism no matter how well dressed they are
(literally: to come across a bean whilst eating shit); an expression to describe when someone gets a windfall through sheer fluke / luck (with a disdainful connotation)