[SJackson]

Is adding already collected wood to a fire OK, presuming it's not essential for health? I noted that I wasn't sure.

[Alouette]

Is adding already collected wood to a fire OK

Collected wood cannot be added to an already burning fire

However the "Shabbes Goy" would visit and add some wood to the fire, and enjoy a bowl of cholent and a slice of kugel and a shot of vodka.

[FoxPro]

Can you have sex during Sabbath? Always seemed like work to me....