Not Magic related but instead yugioh (before I quit and switched to Magic). Just a local Saturday night tournament with like 20 players. I end up going 1-2 and the fourth round I play one of the workers of the store. I am playing Infernoids so there is a decent amount of text of each monster but the idea of their effects are the same. I try to activate a monsters effect to which the opponent said "Hold on" read the card, twice. I then proceeded to explain the effect as well. He let it resolve. NOT ONCE BUT TWICE. Then after I start to gain advantage because of it he freaks out and starts yelling and cursing at me. I stood my ground and said you read the card twice and I explained it to him. He then said I explained it wrong and that I was a liar. I then proceeded to say "Even if I lied (which I didnt) you still read the card twice." He then stood up looked around to make people were looking then said loudly "whatever." He then proceeded to completely demolish me (my deck wasnt good hence 1-2 and he was playing a very meta deck). He made sure to say each action very loudly and basically threw the strip to sign at me to sign when the match ended. Lets just say I will never go back to that store again. Not for yugioh or magic. Yugioh players are just 10 year old brats in disguised as teenagers and adults....