June 4, 2014|12:39 pm

Liam (Screenshot: msibes08/YouTube)

Baby Liam is getting his teeth (or gums) brushed for the first time, and it's an exercise in hilarity. Liam's father yelps in pain every time he puts his finger in Liam's mouth, acting like it's getting chomped. The baby absolutely loves it. His gut-busting laugh is the stuff happiness is made of.