WINONA, Minn. — An East Side woman told police that her adult son punched her in the face and threw a can of energy drink at her. She said they had been building a fence and fell into an argument over money. The son, age 36, was gone when police arrived.  The mother was drenched but said she didn’t need medical attention. Police issued a pick-up alert for the son for domestic assault. The incident was about 3:50 p.m. in the 450 block of East Fifth Street.