Fix claimed he accidentally drank from his dad's water bottle which contained a banned PED.
A Russian figure skater has lost her gold medal because:
"A strawberry dessert contaminated by her grandfather's heart medication might have caused Russian figure skater Kamila Valieva's positive doping test, her lawyers argued at sport's highest court, which rejected the explanation and banned her for four years."
https://www.espn.com/olympics/story/_/id/39477998/kamila-valieva-strawberry-dessert-excuse-rejected-doping-case