Gym goers: It is not just a courtesy to wipe down the exercise equipment, it is a health issue as well. Skin diseases such as MSSA and MSRA as well as many other bacterial issues can be passed onto others by not wiping down the machines. The whole reason we are working out is to be healthier. It really only takes a few seconds to clean the machines for your fellow gym members. Take it from someone whose friend contracted MRSA, once you get it, it is hard to get rid of and can be life threatening.