Is it not customary for anyone purchasing poison to sign a book?
People don't usually leave a signature when purchasing poison?
Isn't it customary for people to give a signature when purchasing food?
When he turned, nobody was there.
The museum, despite having an extensive collection, is not considered important.
The young boy is skiing down a hill and laughing.
My other interests make it tough to make everything work.
That is both crazy and fascinating.
A skateboarder is near a building.