a). When you go to a website and are immediately bombarded with Accept Cookies, then something falls from the top advising me to "Subscribe now" and another one coming from the left to show an advert.
b). Trying to find the almost-invisible X button to close the advert, and by the time you've found it, the advert has timed out anyway.
c). People who then tell me "forgive them for trying to make money using adverts on their websites".