It was at home and during a time when I was more interested in learning to interview than getting hired. Also, having legit ADHD, makes those sorts of tests utter hell, especially considering it was timed and that I have a comical lack of spatial intelligence.

I'm not saying what I did was right, just that there was some justification to it.

Well, if they leave you at home to do the test (especially timed). They must expect you to use any means at your disposal to solve it. It's likely that some people would still not be able to do it.

Because sometimes they excuse themselves after leaving you with the test script. Some don't bother sitting through with you the entire session, especially if he or she is just a HR personnel and is simply tasked to administer the test.