Vilipend
To regard or treat as of little value or account.
'Safety.'
Professor McGonagall wrote the word on the blackboard and underlined it. 'This is something that you shouldn't vilipend.' she said and gazed at the students which looked nervous and slightly scared. 'Transfiguration', she then continued, 'is a highly dangerous subject and, if you don't pay attention, you might end up being a table for the rest of your life. Do you want that?' The first years shook their heads. All except one. He lifted his hand. 'Yes Mr...?'
'Potter. James Potter. I was wondering if your table has anything to do with the disapperance of Jonathan Rahman last week.'
Argh, I am starting to run out of ideas...