Funny note - I grew up a city girl - Pawtucket, Rhode Island. I had ALWAYS heard the expression "useless as tits on a boar". Funny I would have heard that expression growing up city. Then I moved to the country in Kansas. A neighbor raised pigs. Had a farrowing house. I found out (like SOB just mentioned) - teats on a boar are EXTREMELY important. What he has passes on to his daughters.
So, that brings up the question, should we be checking what our bulls have for teats.
5" teats are totally not normal - and does not sound good.