When it was squirting was it in pulses? (Seems like arterial from what you describe.) You can always stock some hemostatic (blood clotting) dressings in your first aid kit. Keeps things from bleeding until you get to proper medical care. http://quikclot.com/QuikClot I carry one in my riding med kit. I can pick one up and bring it down to Ensenada for you if you want?