ACE! What have I told you about making Nitro-9 in the kitchens?
Sorry professor! I don't know why it exploded. It never has before!
You did use the same chemicals?
Yes. I'm not a complete idiot, you know!

There was a box full of things that look like deodorant cans. I don't suppose you've seen them?
Sitting on the kitchen table? Yeah… I ran out of cans for Nitro-9. What was in them?
Whipped cream.
Ok.…Still no idea why they exploded.
Ace! You have to stop using anything you come across and expecting that it's going to blow up when you want it to. Remember Fenric's jar?
Sorry professor, but you tell me not to make any and then ask me to blow up walls with it! I need to have a more efficient supply.
That does not mean using anything you come across to make explosives.
Ok, I'll stop, I promise… Now, can you tell me how I blew up the kitchen?
I seem to remember that you were experimenting with something that looked like a boiled sweet and was activated by saliva.
So they're set off by whipped cream?
It would appear so. And now, thanks to you, we can't have pancakes because we seem to have misplaced the shipment of whipped cream I bought last time we were on Earth.
Sorry professor. Have we got maple syrup?
I think so. Why? Do you need that to make your explosives too?
No. I just want pancakes.