He really walked into that one

Featuring special guest, coworker vet D (which in this case will stand for Dublin vet school), who frequently brings up Cambridge and Stephen Hawking when winding me up...

As D and I cross paths in the ward I accidentally almost trip him:

D: "Tch, trying to trip me. Would you do that to Stephen Hawking?"
Me: "How do you think he ended up in a wheelchair?"
D: "... I'm not talking to you anymore."