you watched to many movies? Esp dont watch too many marvel studio and hallowen serial killer one, they are mental hazard.. you can die in your sleep too.. how would you know if you dont try? If its really dangerous, no one will live to tell you about safety precautions.. a small blob of molten metal can burn your house is as good as marvel studio stories..
First thing I always learn about when using say a power tool like a saw is where are the dangers. You don't just go out and buy say a table saw and start sending pieces of wood through it. If you're not careful, the wood can come back and hit you. Of if you use a drill press, many people have a habit of holding the object while drilling or grabbing a metal shaving off the drill bit as the bit is spinning. You know what happens, the object catches and spins around hitting you; or you try grabbing a metal shaving and it slices your finger (seen it first hand).
Someone who wasn't careful and didn't live to tell about it are reasons we have safety precautions in place on tools. Someone got injured or lost their life as a result of being careless. The takeaway is to learn from those mistakes and not repeat them.
In all fairness, I think not taking something like a fire or getting injured while welding wasn't a smart message to contribute to this thread. You're basically saying to go ahead and weld without fear of getting injured or starting a fire. Maybe my concerns are more exaggerated than reality, but I've heard such concerns from experienced welders, and I'd rather pass on exaggerated concerns than discover the OP or anyone who reads this thread got injured as a result of not being aware or considering the risks.
So are you saying it's perfectly safe to stop a weld, immediately remove your helmet, and shove your face inches from the weld, without fear the red glowing metal that's quickly cooling won't pop and launch a small piece of metal?
There are a few types of people who get injured: the ones who rush a job and the ones who laugh in the face of safety.
I've met people who will mock someone for taking safety steps, however, they are living with something that hinders their life due to an injury they sustained years earlier. I'd rather take a bit longer to do a job, a bit longer to setup the job for safety, wear extra protective gear, etc... than be one of the people who live with a life long injury.
As for watching too many movies, when welding, you have two things going on. Really hot metal and electricity. Hot equals fire potential and electricity equals a shock hazard... period. I had a friend that had a house fire, a very large house fire, all because his sister had a candle burning in the bedroom that was left unattended. It somehow fell or something. Regardless, it was nothing more than a small candle, so I wouldn't joke about anything that has "potential" to grow into something bigger.