mm I don't think Christians play with fire. We have holy fire, which is something else.
Sorry I don't watch youtube videos. You'll have to explain that one.
One of the teachers at school had her house burn down. She got a call at lunchtime to say everything had been gutted. Thankfully nobody was at home at the time ...and I have no idea how the house burned down but teachers have been known to set off the fire alarm in the staffroom with the toaster being left on....
You'd be in the middle of a lesson and need to evacuate. I haven't heard of many schools being target of arson attacks lately, but there have been the odd ones. The danger is more in the dry bush areas esp in Australia. Where I live, homes are more likely to be too damp, wet, rotting and leaky than too dry! So any fire wouldn't cause too much damage, the rains would still come.