Before deleting an event, you're given context that it won't be deleted for everyone else.

When printing a postage label, eBay will warn you if it thinks that the address is entered slightly wrong, and give you a one-click way of fixing it.

After setting up your Roomba for the first time, you'll see an animation where confetti falls to the floor, and then the Roomba will drive around cleaning it up.

Wise subtly encourages the user to reflect on a benefit they've received, (speed of a transfer) in the confirmation email.

When you follow a player or team (to receive notifications), you'll get a breakdown of every possible notification, and a quick way to toggle them on or off.

Wendy's 404 page has an interactive game, very similar to Donkey Kong, where you have to stack burgers.

Codecademy's 404 page has a mini game, very similar to the popular Google Chrome one. But they also have a CTA to learn how to build games, via a Codecademy course.

When searching for 'Bletchley Park' (the historic British landmark, known for code-breaking during WWII), Google will display an animation of code being solved.

If you plug a wet iPhone in to charge, it may be automatically blocked from charging.

When sending a test alert, the email is clearly marked as a test (to reduce anxiety). Then, acknowledging the test alert acts as onboarding, because it tells you what would have happened during a real one.