LARGO, Fla. – Teachers in Florida’s Pinellas County Schools will elect their new union president on Wednesday, and all four candidates have at least one significant blemish on their professional records.

In other words, each candidate seems well-qualified to join the ranks of Big Labor leaders.

One candidate is Richard Wisemiller, a middle school teacher and current vice president of the Pinellas Classroom Teachers Association. Voters will likely appreciate Wisemiller’s years of service to the union, but may be troubled by the teacher’s “decade-plus record of reprimands and suspensions for inappropriate contact and comments with his young female students,” the Tampa Bay Times reports.

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Wisemiller’s personnel file is filled with allegations of inappropriate behavior, including one from last spring when the teacher conducted a lesson about the importance of opposable thumbs. During his presentation, Wisemiller taped a female student’s thumbs to her hands and told her to unbutton her pants.

The Tampa Bay Times reports that during the exercise, Wisemiller allegedly “slid his fingers into the waistband of her pants.” The teacher told a Times reporter that he touched the girl’s belt, but he did not reach in her pants.

The 2013 incident is still being reviewed by the Florida Department of Education.

Even if Wisemiller is cleared of wrongdoing in that incident, the Times reports that he has previously been suspended for “making comments about students’ bodies, calling girls ugly and telling students they were ‘stupid.’”

One incident from an unspecified number of years ago involved a female student who accused the educator of pulling her shirt and bra strap off her shoulder. Wisemiller denied the charge, but the girl’s parents “requested that he never again have physical contact with her ‘even if she was falling down,’ according to a memo,” the Times reports.

Wisemiller’s most recent transgression came last October when he joked about a female student’s small breasts. The teacher maintains his comment was “taken out of context.”

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Given that the state could revoke Wisemiller’s teaching certificate over the misguided “opposable thumbs” lesson, the district’s roughly 4,000 teachers may want to choose their next leader from one of the other three candidates.

But they have black spots on their records, as well.

One candidate, math teacher Donald Manly, was “reprimanded for poor supervision” after a male student sexually assaulted a female student “in a small room” off the teacher’s classroom last March, the Times reports.

Rick Bose, another candidate for the union, has references in his personnel file regarding two incidents in which he allegedly used profanity in front of students. To his credit, both of the alleged outbursts occurred more than 10 years ago.

The fourth candidate, middle school teacher Michael Gandolfo, was reprimanded in 2007 for making an inappropriate remark about a male student’s genitals, the Times reports.

Members of the Pinellas Classroom Teachers Association obviously have the right to choose whomever they want to represent them. And if they think one of these men is a worthy leader, so be it.

However, after learning about the candidates’ flawed history from the Tampa Bay Times, parents and community members should be concerned that too many of the men and women teaching in their classrooms and leading their school district lack the character and moral fiber to be anywhere near children.

Parents should have a reasonable expectation that the adults teaching their children have enough self-control and discernment to avoid using foul language, making course jokes or getting too touchy-feely around impressionable students.

Parents should demand better, even if the teachers union doesn’t.