I get that way with numbers, which is bad because I work with numbers. For example yesterday a customer called me asking for a certain test number, I wrote it down. When I went to retrieve the required information, I just knew I wrote the wrong number, so I gathered both tests. Turns out the number I had written down was indeed correct.

Then in the email to let the customer know I had fulfilled their request, I used a different number in the subject line than I did in the link that supplied the information, which was not the correct test number either.

I did supply the correct information to the correct place though. So weird and frustrating.