A thrown object; as a verb, it can mean to cause harm to the originator
If we recast the verb in the passive voice (was thrown), then 
the ball... [DOC] [TLE] Deontological ethics - Wikipedia [PAR] Deontological ethics or deontology is the normative ethical position that judges 
the morality of ... 1826 to mean more generally "the knowledge of what is right 
and proper".