7. Thou shalt help keep thy building safe.

If you have a security staff, let them know if something doesn't seem right.

Lurking strangers, defaced property, dangerous doings in the stairwells, newspapers piling up outside someone's door.

Got leftover food after a big party? Offer it to the staff, who often work long hours for low pay. Have free tickets to a sports event or concert that you can't use?

Pass them on. If staff can't use them, you can bet they know another resident who can.

If you have no on-site security staff, don't let someone you don't recognize follow you inside.

Insist their hosts buzz them up. You have a right to know who's on your property.

8. Thou shalt not toss cigarette butts, ashes or floor sweepings off the balcony.

Your neighbour below has a right to enjoy the fresh air without having to hold an umbrella.

Be careful when watering plants that a torrent of water doesn't ruin Mrs. Pumpernickel's new blue rinse. Above all, don't barbecue on your balcony.

9. Thou shalt not leave water running when leaving the building.

In highrises, damage from floods costs several hundred thousand dollars a year.

Burst washing machine hoses, overflowing toilets and dishwasher disasters can all wreak havoc for residents several floors below you.

If you're going away for an extended period, shut off water supplies to appliances and toilets to prevent unwanted surprises.

10. Thou shalt not treat the parking garage as an Indy 500 test track.

Roaring around corners or racing along the underground straightaway can seriously injure someone exiting their parked car, walking with a baby in a stroller, or moving slowly because of age or infirmity. A minute's thoughtlessness could lead to a lifetime of tragedy.

Will the extra minute saved really matter? Think about it.

Last, you should read and understand the bylaws and rules regarding your condo corporation.

By finding out such things as how the building runs, when large deliveries are allowed or how locker rooms with shared keys work, you can avoid potential conflicts with your neighbours and, worse, any legal headaches arising from inappropriate actions.