Every time Rick calls someone else stupid I just think back to his gardening, Rick is a man who thinks a good way to manage weeds in your garden is to salt it, he's also a man who thought it was a good idea to photograph himself salting his garden, he also then thought it would be a good idea to post this evidence of him salting his own garden to social media, and to top it all off he thought it was a good idea to advise other people to salt their gardens.
I remember seeing that post for the first time and genuinely being dumbfounded, I had to re-read that post several times to make sure I was reading it right, yes, Rick is indeed so monumentally retarded that he thought good gardening included salting the earth to manage weeds, this is the man that calls you stupid on twitter.