There have been two incidents in the last week of Walmart (WMT) customers that have urinated on the store’s products while shopping. The first incident involved a woman that peed in a bin of potatoes while the second incident involves a teenager that relieved himself on a store shelf.

The 20-year-old woman was reportedly seen by a Walmart employee urinating in the potato bin inside a Pittsburgh store. She was also captured on surveillance video, which police posted on Twitter and its website to help identify the woman.

Grace Brown has since turned herself into police and could face charges of open lewdness, public drunkenness, disorderly conduct and criminal mischief, Business Insider.

In the second incident, a 15-year-old that used a store shelf as a bathroom is reportedly facing second-degree felony charges for tampering with a consumer product after a video of the incident was posted on social media.

In the video, a group of teens can be seen laughing around a puddle of urine that sat next to a bottle of wine on the shelf at Porter, Texas, Walmart store.

According to the news outlet, surveillance footage from the store showed the teen urinating on the shelf. The group of teens allegedly tried to also steal a case of beer from the store but were stopped by Walmart security before it was known that they peed on the shelf.

A Walmart spokesperson told Business Insider, "This obscene conduct is outrageous and disappointing. As soon as we were notified, we sanitized the area to ensure its cleanliness and safety for our customers."

The bathroom crimes follow another Walmart food defacing incident, where a woman in Lufkin, Texas, licked a tub of Blue Bell ice cream and posted the video on social media.

Shares of Walmart stock were down 0.21 percent as of 11:44 a.m. ET on Friday.

A shopping cart sits outside of a Walmart store in Chicago, Illinois, Jan. 11, 2018. Scott Olson/Getty Images