to have bad consequences

to leave peace for the future generations

to be ridiculous; to make a fool of oneself

to affect adversely; to delay or hinder; to waste (an opportunity); to mislead

mussel

to make oneself an object of ridicule

to have disastrous consequences

to make a fool of oneself; to make oneself a laughing stock

a novice making a fool of himself; to make oneself ridiculous before experts

to leave an example for all generations