Starting pitcher Max Scherzer #31 of the Los Angeles Dodgers gets a curtain call after pitching seven innings in his Dodger debut at Dodger Stadium on August 4, 2021 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
Professional athletes are human beings just like us. They may be way more talented at their profession, though they have a heart and soul, and feelings, nonetheless.
The cliche is fan is short for fanatic, and as observers of sporting events we feel we have the authority to act out of line as we see fit. So we choose to.