Hazardous shopping carts in Tesco!!!

Last week i had a weird experience at the Tesco hypermarket in Bukit Tinggi! I don't usually go grocery shopping alone but i was really running low on supplies and did not have a choice. Moreover, i had some other errands to run as well. So i ventured out on my own and I have no idea why on that particular day i chose to wear my high heeled shoes! They are comfy wedges so they are OK to walk in and very comfy.
Tesco trolleys or shopping carts aren't always the most user-friendly things. They have wheels that wobble and never move in a straight line. Sometimes i think they are made to make your grocery shopping days plain hell!! The trolleys never travel in the desired direction and u have to practically use all your muscles in your body to maneuver them around.
Of late , i have noticed that there has been some improvement in that department . Yes, they have finally invested in some new trolleys , bright, clean and shiny and easy to push around. My shopping trip finally turned out to be a breeze :) I went around filling up the shopping cart with all my necessities and then paid for them at the counter.
i headed down the same escalator i always use, all set to go home and rest. The moment my trolley hit the top of the downward escalator, it should rightfully grip its wheels on the tiny brackets or grooves on it. But it did not!!!! So my shopping cart made its way down the 45 degree angled slope at quite a speed , coupled with some thunderous noise of the wheels rolling down the smooth escalator!!! I had to run to keep up with the trolley with both hands trying my best to stop the runaway cart LOL and in my heels!!!! I finally used my left hand to grab the side rail , and the other hand to twist the cart slightly sideways, and both my feet firmly anchored to the escalator! It was some feat , alright!!! My stance was awkward and i was praying that i could maintain that strength till i reached the bottom. But midway down the slope, i lost control again and the cart started to roll down again, and i ran a couple of steps down and jerked the trolley again so that it would halt.
No sooner had i done that , i heard the familiar thundering noise again , and i turned my head backwards and saw that another poor lady had the same predicament as me !!!! She screamed and tried to hold back her trolley. She succeeded .... or i would not be sitting here and telling u all this !!! Phew, i doubt if i want to go grocery shopping alone in Tesco again! I need a body guard!

E-xhausted shopper