Turns out, it was sending me an `\e[0c`, and getting shitty when I didn't reply. `\e[65;22c` means I do colours right? This shit is *ancient*. Some of the specifications are scanned books, with copyright dates like 1976 or 1983. Anyhow lied about being a DEC VT525 or some shit, and it's quite happy with me now. I mean most peoples watches have about a billion times the processing power of one of those...