From the famous videogame Call of Duty Zombies:

Nikolai seemed to lack intelligence as revealed from various amount of quotes. He tended to crack weird, yet funny, jokes, intentionally and unintentionally. He seemed to not care about his physical appearance and smell, but only ever cared about Vodka. However, at the darkest of times, he could also be vigilant and appeared to have a very keen survival instinct. He liked Dempsey, and tended to despise as well as appreciate Richtofen at times 