Computer comparisons to autism related stuff

I use google docs on my phone to explain to people when I'm in a meltdown or shutdown, in those google docs there are various levels of formality and technical language so I can adjust the explanation to the audience.

However, there are two which I have yet to find the right person for so I'm sharing them here instead. 

Shutdown: Error 404: this person is not responding. 

This is where the computer can't find the right link and the resource doesn't exist, this is often how a shutdown is for me, the link to access the functioning bits of the brain just doesn't work

Meltdown: Error 503: this service is not available

This is often where a website has too many demands on it, eg too many people trying to use the website, and thus just stops working. Felt it mirrored a meltdown well

Feel free to comment with other tech comparisons