I don't like it when people make up things to get money, if that is the case here...but we don't know.
I was thinking about how a CM could have gotten it on the child....and here's my scenario, for what it's worth....the nacho cheese sauce was running low....the CM went into the kitchen and microwaved a new bag of nacho cheese...then carried it out into Cosmic Rays to "dump"it into the Nacho Cheese dispenser and as fate would have it, the little boy and the CM were too close to each other and a splash went on the child's face. Parent's coulda been standing right there and the little one scurried by and "ouch"!!!
It coulda happened that way and it woulda been plenty hot.....just saying it is plausible.
With that said, I do think that parents should be a little more aware of where their 4 - 6 year child is. If there was time for the "splash", there was time for just about anything bad happening to the poor child.