I've cooked them from frozen before. I put them on a low/medium setting when the oil was not fully heated. This meant that the oil gradually got hotter and cooked the sausages through.
I admit the image they use doesn't look that appealing or appetising, but I've done it before and it's fine. All depends on the choice of sausages and other ingredients.
Originally Posted by _radioamerica: “I tried once but they became all deformed. The skin snapped and curved them into big C's with what looked like a tendon attached lol”
Sounds like you had been supplied with a sub standard Sausage.
Talking about bursting, there is a special hot dog called a ripper that is deep fried and you know when it's done because the skin rips and becomes crispy.