Professional Golf Association commissioner Tim Finchem doubts the timing of the event was a deliberate slap.

VOA: standard.2010.02.19

It only works within species. So, in another experiment they put a rabbit in the other room and the chimpanzee would slap the lever repeatedly to make the rabbit scream in pain and jump.

这种结果只出现在同种动物上，在另一个实验里,他们在另一个房间放一只兔子,结果黑猩猩不停地拍杠杆,让兔子痛得上跳下窜，大声尖叫。

耶鲁公开课 - 心理学导论课程节选

In language both lawyerly and graphic, the attorneys gave legal justification to slap,strip,and shackle detainees.

VOA: standard.2009.04.17

There was another anti-incumbent slap in the face for establishment Republicans in Kentucky.

VOA: standard.2010.05.19