Did you ever take the laptop out of the bag, and it was super-hot?
As we continue with the transport issue, the other most usual case is when the laptop just stops working.
You open it ready to do the task and nothing is going on. Plugging the charger is not helping, holding the power button is not working…
We don’t know but often the laptop can open as the lid for some reason, lifts from the base.
The laptop starts and the lid closes in the bag while moving and you have no idea why the laptop is not starting.
Often the laptop has overheating protection, and this makes the laptop shut down and lock itself.
In the worst case scenario, the laptop continues to work, and the heat just builds up to the level where the components in the laptop are permanently damaged and it needs to be replaced. Most likely it is the processor - the graphics chip, the graphics chip - chipset or any other combination.
So most important is to remember to shut down the laptop before traveling and that will prevent this disaster from happening.