I'm sure you can find some messy lines to surprise people with. I play some very dodgy, personally researched lines that are 100% refutable but gain many, many cheap points in bullet games.
However my personal opinion is that 3...f5 is going to be quite easily refutable even over the board just by playing natural moves.
However my personal opinion is that 3...f5 is going to be quite easily refutable even over the board just by playing natural moves.