盲人瞎马 [- - xiā mǎ]If the blind leads the blind, both shall fall into the ditch.; very dangerous; the blind leading the blind; a blind man on a blind horse — rushing headlong to disaster:
•¶ 我不能让你盲人瞎马地去到处乱闯。 I won't let you rush about like a blind man riding a blind horse.