Every man has a fool in his sleeve

Similar English and Irish sayings:

Every man is a fool sometimes, and none at all times Every man is a fool sometimes, and none at all times
To wear one’s heart upon one’s sleeve To wear one’s heart upon one’s sleeve
A fool knows more in his own house than a wise man in another’s A fool knows more in his own house than a wise man in another’s

Proverbs and English sayings