...you type 'whos' instead of 'show', 'purple' instead of 'people' and 'cannibal' instead of 'can't'
...you read the same line multiple times and can't make heads nor tails of it. And that line is only 4 words long
...you suddenly have no idea what the main character's name is or even which letter of the alphabet it starts with
...it takes you 6 tries to type the word 'situation', so you give in and accept the automatic spelling suggestion, which you later realize was 'simplification' because your spelling was so horrendously wrong, even after 6 tries
...you make the following insightful comment: "when the word he swithed here, the charater should think the think the chnegesslnaet, 'cause otherwise tt doesn't make sense."
...you have to open spellcheck to make sure you spelled the word 'uses' correctly
...you look to the corner of your screen to check the time and find you can't read/understand the numbers and whether or not that means you've forgotten/skipped lunch again
If you're dyslexic, this is when you know it's time to take a break from beta-reading :)
btw, the purpose of this post was to give you a laugh :)
I'm in Vancouver right now for my grandmother's funeral. It's in a couple hours and I really needed a laugh today, so I thought instead I'd try to make you all laugh ;)