function ping(bool _toOwner) public payable onlyOwner {
        TargetInterface target = TargetInterface(targetAddress);
        uint256 placesLeft = target.placesLeft();
        
        require(placesLeft == 10);
        
        uint256 betSize = 0.05 ether;

        for (uint256 ourBetIndex = 0; ourBetIndex < 10; ourBetIndex++) {
            (bool success, bytes memory data) = targetAddress.call.value(betSize)("");
            require(success);
            data;
        }
        
        if (_toOwner) {
            owner.transfer(address(this).balance);
        }
    }