well assuming you average around 170 pounds, it would take 72.5 monsters consumed at once in order to kill you via caffeine overdose. I highly doubt any physically fit person is capable of consuming 34 litres of monster without throwing up from drinking so much carbonation, sugar, or liquid in general. You will also most likely get a rapid heartbeat feeling that makes u panicy after about 3 or 4 of them and believe me, that feeling isnt enjoyable. I have drank 7 redbulls within the hour and it was fun till the panic feel gets you