Grunt Proverbs

Noh care how boar hog try fi hide under sheep wool, ‘im grunt always betray ‘im. (Jamaican Proverb)
Young pigs grunt as as old pigs grunted before them. View proverb
Danish Proverb
What can you expect from a pig but a grunt? View proverb
Swedish Proverb
What can you expect from a hog but a grunt? View proverb
English Proverb
Was bald grünt, verdirbt bald. View proverb
Bavarian Proverb