// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

contract UncheckedCall {
    mapping(address => uint256) public balances;

    function deposit() external payable {
        balances[msg.sender] += msg.value;
    }

    function payout(address payable to, uint256 amount) external {
        require(balances[msg.sender] >= amount, "insufficient");
        balances[msg.sender] -= amount;
        to.call{value: amount}(""); // return value ignored
    }
}