He wants to charge 0.0005BTC for each shot.
Again, i dont see any problem with that 0.0005 is NOTHING compared to the actual fees for sending payments, actually, it is the most cheaper exchange in terms of fees, bittrex is charging 0.001 for fees (about $15) And poloniex is just charging $7 for that.
What do you prefer, losing all your money or paying $7 to recover $2000 per day?