Cancer

remxxx: free to tell me to bugger off at whatever point is appropriate ;-)
ali: oh blah. you’re benign
remxxx: I respond well to radiation therapy too! :-)

[ …a little while later… ]

ali: when was the [birth]day?
ali: you come before Cancer [the Astrological sign], right?
remxxx: yes… I respond well to radiation, like I said ;-)

[he’s a Gemini]