Semi rolled over on Hyw 400 in Canada.

[Apostolic]

Doesn't matter who,or where a driver drives a truck,if they are not focused on what their doing.
Semi's are not that hard to go over on there sides,in some cases there roof as well.

http://www.parrysound.com/news-story/6770959-transport-crash-to-cause-delays-on-highway-400/