Correcting the silly underline error:
Hum.
Kaloki asks what he might have intended doing other than causing people harm. No-one can know for sure, but my guess is that he wanted to set the fire extinguisher off by throwing it off the building, thus getting it to spray everyone. I think stupidity rather than active malice (ie intent to do harm) is a likely explanation.
Similarly, I think stupidity with only a small amount of malice lies behind the action of the police officer who pushed over Ian Tomlinson and killed him and was punished for this actual harm with ... no punishment at all. I doubt the police officer wanted to cause serious harm, but I struggle to imagine he didn't want Ian Tomlinson to be sore and bruised.
There are times when "Justice? Just us" feels all too appropriate to me.
Expat, btw, you tell the heart-warming story of the man who killed his girlfriend by drunk-driving at 120mph and then reformed. You mention that he served 3 years for his crime ie 4months longer than this man's sentence, and 1yr8months longer than he's likely to actually serve. Do you think that differential is appropriate? If not, what would you change: increase the sentence for your drunk-driving involuntary killer, decrease the sentence on the fire extinguisher tosser (I'm quite pleased with that pun), or both?
One other comment: there seem to be a lot of people making extraodinarily vitriolic comments about this man. In particular, a lot of suggestions that he should suffer for the rest of his life only be able to get dead-end jobs, etc etc. These comments frankly sound a lot like vengeance, sadism and mob rule not a desire to see the rule of law prevail. Will someone justify them? What is the value of such hate-filled speech?