Typically, in normal circumstances, IF the majority of the flat owners are of the opinion that a Security Guard is required, THEN one or two flat owners lose their social right to speak against the majority flat owners.
IF, however you are aggrieved by the incompetent attitude / habit of your drunk / sleepy security guard, THEN it is best to call up the police station (preferably anonymously) and complaint against the security guard specially on the moment when the security guard is drunk. The police would do the needful for you, without you coming into the picture and rest of the flat owners will also be indirectly obliged for such social act of yours.
FURTHER, IF you are using common facilities like Sweeper service, Staircase lights & Water pump electricity etc.... THEN you are socially & morally bound to pay your share of the common expenses (of course without brooding or grumbling).
HOWEVER, even IF you prefer not to pay the common expenses, THEN too the other flat owners cannot do anything about it against you, specially so IF a society has not been formed or registered.
Keep Smiling .... Hemant Agarwal