Part 1
A man is traveling by foot when he sees a party of merchants walking in the opposite direction. With that party is a donkey who is heavily burdened with all the merchandise. The man noticing the donkey ready to collapse, states, "That donkey is carrying too much! Take off some of those things so that he does not die from exhaustion!"
The merchants take a look at the donkey and see that the man is correct. They start to discuss among themselves what they should do.
Part 3 - Final
Despite this final warning, the merchants continued on their way. Just as the man said, the donkey collapsed, unable to move any more. And the merchants were unable to sell any of the merchandise they had on the donkey, and instead completed their journey empty handed.
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Does this story remind you of anything?