Just over heard, Dev A was reviewing another team's code ...
Senior Dev A: "I don't understand this teams code. I hate WebAPI. Wish we could use X."
Senior Dev B: "Why can't we use X?"
Senior Dev A: "It's frowned upon."
Senior Dev B: "By whom?"
- couple of seconds of silence -
Senior Dev A: "X is not a Microsoft technology"
- few more seconds of awkward silence -
Senior Dev A: "X is magnitudes slower than WebAPI anyway."
Senior Dev C: "What? How much slower?"
- caught off guard..didn't know Senior Dev C didn't have his headphones on -
Senior Dev A: "Um...I don't know, that is what you told me."
Senior Dev C: "I never said that. I've never used X. I prefer WebAPI anyway, but both WebAPI and X use REST based protocols, I doubt X is magnitudes slower. Actually, I think you told me WebAPI was slower."
Senior Dev A: "Different paradigm."
- second or two of silence -
Senior Dev B: "What?"
Senior Dev A: "Hey, did you see on twitter ..."

Have no idea where he thought that conversation was going. Maybe he was hoping the other devs would dog-pile/attack the code. Pretty funny it backfired. His face when Dev C said 'I never said that' was priceless. Like "Oh -bleep- ..how do I lie out of this one? ...quick, distract with random words or a twitter post"