Police in Eastern Wisconsin are trying to flush out a suspect accused of going on a serial toilet clogging rampage.

The Sheboygan Police Department is looking for a person that they say has been clogging the women’s toilet at the Deland Community Center for the past 18 months.

According to a press release, the person has been using a 20-ounce bottle to clog the toilet, causing thousands of dollars in damage and in repair costs in the process.

“Why do this? I do not know,” a police spokesman said. “This is very strange, and gross, but that is the reality of life.”

If people see anyone acting suspiciously around public restrooms, they are encouraged to call Sheboygan Police at 920-459-3333. Citizens are also eligible for a cash reward if they call Crimestoppers at 877-283-8436.