the only thing with slapping dirty smackheads is geting blood on you, dont want any of there blood related diseases  ( Hep and hiv spring to mind ) 

 thats why running them over in a car is better, less chance of getting infected blood on you
of course i will join in with the group 
you were very wrong to give them a slap, it gives all of us a bad unprofessional name, you should have turned the other cheek and asked the lord for guidence in this matter  
 
 
 failing that, asked some local passing girl guides / nuns / monks other good type of people ( delete as you seem fit )  for advice  
 
 