Here's what I was/am doing:
1. set two of my people to train on dummies
2. maxed the time speed
3. left computer alone
4. turned on TV and started watching Sliders on Netflix
5. about 15 mins in, went to kitchen to get popcorn
6. checked game and saw that it had crashed
7. posted this report
8. going back to watching Sliders
Hope this helps, haha