↓ Transcript
1. {Romans certainly dug trenches under their floors...}
2. {...this was certainly a kind of ritual for deflecting evil spirits...}
3. {...which would then get confused inside the labyrinthine tunnels.}
4. {It is clear that they did no use underfloor heating as _some_people_ would have you believe} --click
5.
6. (I _hate_ these hypocaust denialists)