Quote Originally Posted by BDSM_Tourguide

Also, you asked about your legs and if anything could happen from kneeling for a long time. There is a medical condition known as DVT that occurs in patients that have been immobilized by surgery for a long period of time. DVT is a blood clot that forms in the legs and breaks loose and moves through the blood stream and into the lungs or brain causing respiratory failure or stroke. However, in instances of DVT, the time frame is usually measured in days off your feet, and not hours.
Agreed, but
First aid lessons, once upon a time, teach me that garrot, used on member never on the neck , should never be maintained tightened more than twenty to thirty minutes (a quick release of a few seconds...), and when finally removing it, the release should be done gradually (or even with a more complicated pattern such as loosening then tightening back...) to at least try to avoid the burst of toxin release in the mainstream.