The concept that alignment is a job for the pros reminds me of a guy at
work from 20+ years ago.   He was one of the guys that did field
service of our computer equipment.   A real nice guy, but no common
sense and he was always getting himself into trouble because of it.
The guy was alwasy just about broke and people were always feeling
sorry for him and trying to give him advice to help him out, but to no
avail.

One day he's telling me how he's gonna replace the torsion bar in the
front suspension of his Dodge Diplomat, which had broken.  Now this guy
lived in an apartment building and had limited tools, no lift, jack
stands etc.   Doesn't seem like the kind of job I'd attempt, given that
you could have it done professionally at a reasonable price.  I
suggested it would likely be better and worth it to take it to a shop.
On Monday he comes in with his arm in a sling, having injured it while
doing the work.

Then he proceeds to tell me that now all he needs to do is the
alignment, which again, he's gonna do himself.   I try to tell him that
I don't see how that's possible without the right equipment.  He says
no problem, you just measure a few things using a ruler, no problem.
I try to tell him this is one of those things you shouldn't do yourself
and he can get it professionally done at that time for $75-100.
About 3 months later, he;s telling me his latest tale of trouble.
Seems his front tires, which are relatively new, are now bald on the
edges of the tread and he needs new ones.

Perhaps his all time classic story of flawed thinking was when his wife
was driving their car and had an accident.  He was going around telling
everyone how unfair it was because she was being blaimed for the
accident.   Seems she was crossing a wet bridge, lost control, spun out
and into the path of a car coming the other way.    He kept saying "It
wasn't her fault.  HE hit her!"