I once made friends with the enemy top-laner as Cho. He was a Maokai and we both started Flask and pots. For Summoners, I had TP/Ghost, he had TP/Flash. There was no way we were going to kill each other without the other making a seriously stupid mistake. We tried dueling early, then quickly realised there was no way it was happening. I forget which of us started it, but we made a truce to freeze the lane in the middle and just farm. We both recalled at the same time to get RoA, then later for other items. We copied each other's builds and got the same items for the entire game. We stayed in top lane for about 40 minutes just farming and making bad jokes with each other. We were both in five-man groups, and it was a Normal game, so our teammates went along with it. Eventually the enemy team got ahead and started attacking my base, so I had to say goodbye to top lane and try to save my allies. Unfortunately the enemy Vi jungler was too far ahead and could destroy even my hyper-tank self in seconds, and they won. Mao and I added each other as friends after the game.
A few weeks pass and I'm playing with the same five-man group. I'm Cho top again, then see who I'm against. I start getting really excited in our voice chat. "Guys, it's him! It's the Maokai!" (But this time he was Shyvana.) Immediately after the game loads we both start making comments in all chat in reference to the first game. We weren't sure if things would go the same, since his Shyvana build had him going more damage-based, but after a few levels it devolved to the same thing. I didn't have the damage to kill him, but I was too tanky to really be bothered by what he did to me. At one point he started going full-ham on me while I farmed and I just continued farming, typing "Stop." "No." "Ow." "This hurts too much." "Please, you're killing me." while he ulted and blew his full combo on me. It seemed like my Thornmail did just as much damage to him as his Hydra did to me. I did have my passive proc a few times since I was just ignoring him and killing minions, but I really didn't feel all that threatened. Eventually he just gave up and we went back to the original plan of 'freeze the lane and farm.' This time my team won the game, despite the fact that my team's mid-laner (a Lux, I think) came up top and we all had a dance party in the middle of the lane. All three of us leveled up during it, leading to the obvious conclusion that dancing was worth more experience than combat.
Those two games were some of the most fun I've ever had, even though we lost the first one. Cho'Gath is one of my main top laners and seeing him banned so much recently is annoying, but I can understand it. I prefer him full-tank, but his AP scalings are insane. It's hard to get mad while playing as him, and so your relaxed state kind of bleeds into the rest of the game. You make way more bad jokes, you goof off, and you generally try to make things fun for everyone else. Also, an unwritten law of playing Cho'Gath is to always make an awful comment in /All chat when you kill someone with your ult. Examples are...
: "The chicken was good, but a bit cold."
: "Orange-flavor! My favorite!"
: "That tasted outrageous... Truly, truly outrageous."
: "Way too overcooked."
,
,
,
, etc: "Ooooh... Bite-sized."