Referring to Red Bull costing him the win at Monaco 2016 by completely botching his pit stop (didn't have tyres out lolwut) and he was in ultra-sulk mode.
All the drivers are capable of throwing their toys out when they think someone else has screwed them, the fact Ricciardo was seen as mature about dealing with his own mistake here doesn't really change that.
Hamilton has every right to be angry at the team in the same way Ricciardo was at Monaco. Both are justified as they themselves are not at fault for the errors of the team. The attitude shown was different between both drivers in the most recent example of something not going your way (regardless of self inflicted, or not).
Let me rephrase;
If you asked me to describe Ricciardo I'd say down to earth, likable, genuine (and I'm not saying this because I live in Australia either). Where as if you asked me to describe Hamilton I would say, uncompromising, confrontational, perfectionist. They are not bad qualities, just different and they have served him very well. It's just because Daniel is more personable or relatable, I see him more positively.