I lived in Calgary for 26 years until 2000, when I just could not take the snail-paced traffic any more.
Marlborough, and especially around Marlborough Mall, is just like going to the Bronx, New York.

I locked my doors and rolled up my windows any time I had to be in Marlborough, and i made sure that wasn't often.

Stay the heck off the East side of town and you will have a great time in Calgary during Stampede. Try and find some of the bigger Bars... its a hoot!
for 26 years I used to SOOooo look forward to those 10 days

On edit: Learn to pronounce Calgary like a Calgarian too...
CAL gree
not cal GAR ee

2 syllables , not 3. Then everyone won't know you are from Ontario