Frankly, you dont need 6,10 or even 20 kids to give **** to your neighbours.....I used to live on the 11th floor in a 20 storey flat.  This is the schedule for the noise level that I had to tolerate for a good 3 years from my chinese neighbour above me.  No. of occupants : 04  / Daddy, Mommy, Granny and a 4 year old kid. 
7:30am - Kid prepares for school - Jumps off the bed repeatedly, run, hops around the house, throw things on the floor when not happy with granny 
8:00am - Kid left for school, granny starts cooking...chopping, dropping of utensils, dragging of chairs 
8:30am - I leave for work 
7:00pm - I reach home to be greeted with Granny screaming at the top of her lungs, Boy jumping up and down, throwing tantrums, running around the house, jumping off beds etc etc 
8:00pm - Boy sleeps (Peace and quiet for now) 
10pm - Mommy comes home (play with kid) 
12am - Everyone goes to sleep 
2am - Daddy comes home from work drunk most of the time.  Furniture dragging, things dropping on the floor, occasional shouting 
4am - Daddy sleeps 
7:30am - Kid prepares for school - Jumps off the bed repeatedly, run, hops around the house, throw things on the floor when not happy with granny 
This goes on on a daily issue.....HDB cant do anything and same goes to the police.  I've moved out of the place 2 years ago and now living in a corner top floor EM.  Heat issues?  Yeah when it's really hot.  But when u get a neighbour from **** above your unit...U R DOOMED!!!!