The boundary line should be solid because it have a 'great/less than or equal to' sign
What is the product? I cannot help you if I don't know the product..
Answer:
You could be working at the Starbucks coffee and you messed up the coffee machine and it's turning really hot it can catch on fire and the counter is made out of would and other flammable stuff you can burn the whole Starbucks down to rubble