MADISON, Wis. -

Police arrested a father at a Madison library after they said he yelled at his young son and then cracked open a beer.

Authorities said that Dan Schroeder was at the Pinney Branch of the Madison Public Library on Cottage Grove Road when he created a disturbance by yelling at his four-year-old son and then swearing at the library staff.

Police found Schroeder and his son in a truck with an open six-pack of beer.

Upon identifying him, police realized that there was a warrant out for Schroeder's arrest for a DWI.

Schroeder was also charged with disorderly conduct.