<vrakaslabs[m]> "Ah, that makes life much easier..." <- Sorry, I'm struggling to see (or demonstrate) how this lifetime protection works.
```let y = phy.transmit(Instant::from_millis(time));
        let z = phy.transmit(Instant::from_millis(time));
        match y {
            None => (),
            Some(tx) => {
                tx.consume(40, |buf: &mut [u8]| {
                    let str = "this-is-a-test-of-ethernet";
                    buf[0..6].copy_from_slice(&[0xd8, 0xec, 0x5e, 0x2b, 0x45, 0x07]); //dest mac
                    buf[6..12].copy_from_slice(&[0x03, 0x48, 0x46, 0x03, 0x96, 0x21]); //dest mac
                    buf[12..14].copy_from_slice(&[0x00, 0x00]); //EtherType
                    buf[14..40].copy_from_slice(str.as_bytes()); //Payload
                });
            }
        }

        match z {
            None => (),
            Some(tx) => {
                tx.consume(40, |buf: &mut [u8]| {
                    let str = "this-is-a-test-of-ethernet";
                    buf[0..6].copy_from_slice(&[0xd8, 0xec, 0x5e, 0x2b, 0x45, 0x07]); //dest mac
                    buf[6..12].copy_from_slice(&[0x03, 0x48, 0x46, 0x03, 0x96, 0x21]); //dest mac
                    buf[12..14].copy_from_slice(&[0x00, 0x00]); //EtherType
                    buf[14..40].copy_from_slice(str.as_bytes()); //Payload
                });
            }
        }
```