Oooooh... tell us a story, Uncle Shaun!
Please do correct me if I am mistaken, but aren't Quick-Clot, combat tourniquets, and Israeli bandages generally only for large traumatic injuries involving major blood vessels-- and kind of a last resort at that? For instance, you wouldn't use a tourniquet if you'd cut your hand, but you might need one if you'd cut your hand off. My first aid training was long enough ago that I've never worked with Quick-Clot, but I was always told that the incorrect use of tourniquets could cause damage that could further the injury, or even be worse than the injury itself.
Thats exactly correct, antihemorrhagic agents are next to useless but mostly pointless on anything less than a significant bleed. Combat tourniquets work in a similar fashion but will work for every kind of bleed, however knowing how they work and what they do to the body can allow a person to make a call on if they need one or not. Israeli bandages are pretty much a good combine and a tourniquet in one setup.
The patient had sliced his hand open with a saw, a significant cut but no tendon damage that we would determine...this was because the patients friend had applied both Quick-clot and a CAT. This made my job hard as i could not assess how bad the cut actually was so i was unable to inform the hospital on what team they should have ready to receive the patient. Adding to this the patients whole arm had gone numb which is a great sign that the CAT is doing its job, which is also a sign that the patient most likely now has compartment syndrome and will require another medical procedure to ensure they don't loose their entire arm. In frustration i asked said patients friend how long it had been on to which i got "umm...might be about an hour...might be longer, the bleeding didn't stop so i knew it was bad". Basic training on these things is pretty simple...wrap around limb tight, tighten bar until tight, lock bar, write time applied in space provided....so i asked why he didn't follow that last step i got the most amazing answer "the you tube video i watched said i didn't need to".
So its pretty simple folks, go and do a first aid course...it will teach you the basics. If your really interested in stepping up to some more advanced gear and life saving techniques, go and take some advanced courses...there are some great ones I've seen in the US (and Aus for that matter) that will allow you to knock the theory over in your own time and then spend a few days learning the hands on...if your not keen on doing that last part...well wait for someone who is to rock up.