A British dentist was found guilty on Thursday of urinating in his surgery sink and using dental tools meant for patients to clean his fingernails and ears.
A medical tribunal said it was satisfied the evidence showed 51-year-old Alan Hutchinson, who "routinely" did not wear gloves or wash his hands, had risked the health of "himself, staff and patients" for more than 28 years.
A dental nurse who worked for Hutchinson for 16 years said she had caught him urinating in the sink more than once.
"He was tucking something into his trousers before zipping them up hastily. I walked over and I was behind him. He moved to the left and I could smell urine," the nurse told the tribunal.
A later hearing will decide if the dentist's unhygienic habits impaired his ability to treat patients, and if so, whether he should banned from practicing.