Police say a high school teacher in Walpole, Mass. wearing only a ski hat, ski goggles and a towel ambled down to his mailbox early Monday morning, then dropped the towel and began thrusting his hips in the direction of the mailbox.

Two women say they witnessed parts of the bizarre incident, reports local FOX affiliate WFXT.

Norfolk County Agricultural High School teacher Marc Mertz trotted from his house, which is secluded behind some trees, down a snow-covered driveway to his mailbox at the edge of what appears to be a reasonably busy road. He was allegedly wearing a towel, a winter hat, goggles and nothing else.

Initially, an unidentified female driver spotted him. The woman said she then drove by a second time—because of course she did. That’s when she saw Mertz without the towel. He was wearing nothing from about the nostrils down.

Walpole police chief John Carmichael said Mertz, 44, then made “a return trip” to the mailbox a couple hours later. This second time, another unidentified female witness also saw him first in a towel and then in the buff.

“The suspect dropped his towel, basically exposed himself to the victim,” Carmichael told WFXT. “He started to gyrate his body in the vicinity of his mailbox.”

When police showed up, Mertz denied everything at first. Then, however, he reportedly confessed to his nudity.

On Wednesday afternoon, police arrested Mertz on charges of gross lewdness and disturbing the peace.

The teacher was later released on $1,000 bail and ordered to avoid the women who reported his antics.

Carmichael noted that Mertz was also busted in a similar situation in 2012 when he “exposed himself to some boaters that were launching at a lake in a similar type incident in Natick.”

According to the Norfolk Aggie website, Mertz is an instructor in the plant, environmental and mechanical technology department. Fox Boston adds that he teaches forestry courses.

School officials at have placed Mertz on administrative leave.

It’s been a bang-up week for Massachusetts teachers in the news. Earlier this week, school officials in Fitchburg, Mass. placed 23-year-old Kaitlin “Kaity” Pearson, a special education teacher’s aide, on administrative leave after her awesome modeling photos anonymously appeared in the superintendent’s mailbox. (RELATED: Teacher sent home for being too sexy, model of the year)

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