Used to work with a nurse who would use abbreviations. One of her favorites was when she would try to describe something as watery. She tried to use the formula for water, H2O and add a "y" on the end, so she thought she was writing "H2Oy". Instead, what she was writing was "H2O2y". I would see this notation and think, hmm... Hydrogen peroxide, so foamy?
Thru, nite, sox, slax, nocs, tix, and pix are among my twitch triggers. Also worked with a nurse who argued with me that "thru" was the correct spelling and "through" was incorrect. She was also the one who would say, "I saul it" "We had went" or "I had went". She also called babies "it" when speaking to the baby's parents. Guess she was a twitch trigger, too.