According to WALA-TV, one of the pictures posted on his Facebook page shows Hollinger, a teacher at Eichold-Mertz Elementary School, wearing a helmet that belongs to one of his second-grade students.
"My son wears a helmet for seizures during P.E.," Celeste Dennis told WALA-TV. "He had a picture of himself with my son's helmet on, making fun on him like that was some type of a joke."
An official from the school told WALA-TV that "the appropriate measures were taken," although Hollinger still works at Eichold-Mertz Elementary School.
Hollinger isn't the only teacher to find himself in trouble over comments posted to Facebook.
Viki Knox, a special education teacher in New Jersey, is currently under investigation for posting anti-gay comments to Facebook.
And in March, Christine Rubino, a teacher in New York, found herself under fire after posting inflammatory comments about her students to Facebook. A day after a Harlem girl drowned at a New York area beach, Rubino suggested that her students should take a beach trip. "I hate their guts," she wrote, according to the New York Post.
Watch the video at the top and click over to WALA-TV for the full story.