For the blind sellers there are blind buyers.
More Bulgarian Proverbs:
When given a kingdom, the gypsy asks: what about bread?
Bulgarian
Ravens do not peck each other's eyes out.
Bulgarian
Tell the blind he is eyeless, and he will get mad at you.
Bulgarian
If you call one wolf, you invite the pack.
Bulgarian
The Bad tax-collector will sell one of your oxen, the good one - both.
Bulgarian