How to make a fool of yourself without even realizing it

Work for the whole day, until it's quite late and there's no one left in your office. Finally turn off your computer and decide to leave, to then realize it's raining hard, you got your bike, and of course, you are not prepared. Look for plastic bags, find none, and decide to leave your rucksack in the office so it doesn't get wet; you have to hang your back light somewhere else (why not your belt, just over your ass). Start biking toward home, get quite wet and cold, not to mention completely hungry. Find a Chinese Restaurant at the Langstrasse, drink a terrible coco-juice and eat some rice. Exchange some words with the waiter about your country -or the southern part of it- and pay him. Go back to your parked bike, and then realize you had the red bike light flashing (the whole time) close to your ass while you ate the satay with rice and chicken, and that probably the waiter distracted you with such a conversation so his colleagues could also laugh about your red-ass-light.
Go home, get to the mirror and look how stupid you looked. Laugh internally and write a post about it.