Sabotage ah... i dun dare leh... sekali got camera.. i will end up on STOMP's webby instead.
If we try to talk to them.. like my other neighbour who did dat.. might become enemies.. hard to 'kai kou' also. Go straight to town council.. they will probably get offended for complaining them behind their back.
Either way also cannot resolve amicably coz dat family really sot 1. They like to do their gardening late at night.. i juz came back ard 11+ pm & they r still at it. They like to pile up junk at home too.. trying to block up the doorway to prevent people from looking into their flat. Always 'gui gui sui sui' 1.. dunno wat the hell they doing. Weird neighbours..