When I look at a foot print on sand it is very clear to see that the main force goes to the heel and ball.

如果观察沙摊上的脚印，就可以清楚地看到脚底的受力点主要在脚后跟和脚前掌。

youdao

The signed print, entitled No Ball Games, was recovered after a member of the public bought it from the suspect and became suspicious of the transaction, police said.

BBC: Banksy art recovered in fraud probe