They thought the worst part was getting out of Egypt. They discovered later that it took more stamina to stick with the program while scrambling through wilderness ravines.
When ordering the food, we found that the short hair old waitress had jotted down a wrong item, so we corrected her immediately. But finally, she forgot to input that item into the order!
Damage often occurs slowly, with peripheral vision affected first, and many sufferers do not realise there is a problem until their sight is badly affected.