It was 20 years ago that the legendary Barney Stinson entered our lives. He wasn’t the perfect person but he was the reason (see what we did there?) people were saying “legendary” and “suit up” all around us. But beyond that, he was all about dishing out some wisdom. Little nuggets, some of which hold true even today. Some more so than the others. Mainly because we’ve become older and acidity and upset stomachs are the norm now (you’ll see what we mean once you read through).

So, as How I Met Your Mother gears up to celebrate its 20th anniversary, here are some of the many “one rules” Stinson lived his life by. Haaaaaaaaave you hear any of these?

If ‘Don’t Stop Believing’ comes on, stop whatever you’re doing and sing along with one hand up in the air.

When travelling internationally, it’s best to stick to bottled water and avoid ice cubes.

Never pass up a free sample.

Never order a “small” beer.

Black tie is never optional.

The longer the line, the better the food.

Flax seed relieves upset stomach.

Never trust a dude with hair past his shoulders.

Never trust a dude with hair ON his shoulders.

Never wear a brown belt with black shoes.

Ask yourself, “What would Ted do?” Then do the opposite.