A while back West Side Jiu Jitsu, where I practice, ran a promotion offering four classes for free instead of the customary one. They also included a free month for referrals. We had a good number of potential new students come that month. I don’t remember to much about most of them that didn’t stay but I will never forget one particular guy. He was very proud of the fact that he had purchased his gi off of eBay for only $35. It was a white starter gi and I thought it wasn’t a bad investment. Its probably good he didn’t last longer then the free classes. Towards the end, maybe his third class or so, I was sitting out and watching the guys roll. I then discovered why the gi was $35. I noticed that at some point someone had lost bowl control in that gi. No washing had been able to remove it. It wasn’t noticeable when the guy was standing but when he was bent over in guard it was beacon. Your eye was drawn right to it. It occurred to me that others might sell gis that had ringworm. I will never buy a used gi. Getting what I think is a good deal would never be worth ruining my BJJ time or reputation.