My ex used to fish mine out of the dirty clothes hamper and wear them.
The only way I knew it was happening was because after I put them though the wash and pulled them on the darned things would fall around my ankles because the elastic was stretched to damnation.
I have wore panties for the last 6 months when I sleep and on weekends. My mens underwear are covingtons, that are all nylon. I would wear panties all the time if I had a inside job.