[Someone]

> Walking: 5 km/h * 70kg => 875 (although this is a very slow estimate for a walker)

In the context of this thread (a walker who’s drunk), I don’t think it’s very slow.

Also, https://en.wikipedia.org/wiki/Preferred_walking_speed:

“The preferred walking speed is the speed at which humans or animals choose to walk. Many people tend to walk at about 1.42 metres per second (5.1 km/h; 3.2 mph; 4.7 ft/s).”

https://www.sciencedirect.com/science/article/pii/S209575641...:

“The results show teenagers walk at an average speed of 1.45 m/s, young adults walk at an average speed of 1.55 m/s, middle age pedestrians walk at a speed of 1.45 m/s, older pedestrians walk at speed of 1.09 m/s, and elderly or physically disabled pedestrians walk at a speed of 1.04 m/s.”

5km/hour is about 1.4m/s; the fastest of these speeds is 5.6 km/hour.