Turns out, the prospect of sending people to Mars elicits some pretty strange questions, statements, requests ... and even smooches.

On Tuesday, SpaceX founder Elon Musk unveiled the company's plans to send humans to the Red Planet in a highly anticipated speech at the International Astronautical Congress (IAC) in Mexico.

Then came the Q&A segment.

Musk spent about an hour and a half discussing SpaceX's strategy to fund and execute human colonies on Mars — and, certainly, several attendees asked him about that. But a few had more personal inquiries: one person wanted to pass a comic book, The Future of Fusion, to Musk onstage, and another asked if she could kiss Musk "on behalf of the ladies."

Elon Musk looking really uncomfortable after someone asked if she could give him a kiss during Q&A. pic.twitter.com/N0H5FObbfM — Miriam Kramer (@mirikramer) September 27, 2016

And the fun didn't stop there. In what was clearly a poorly timed pitch, someone looking to produce a Funny Or Die video asked Musk if he'd use math to ID the "most expendable" person (and thus the most appropriate passenger for a one-way Mars trip) on Earth. He then suggested that person was actor Michael Cera.

But the question that took the cake was from a recent Burning Man attendee, who wondered aloud whether Mars would have functional toilets or whether, like Burning Man, it would be a "dusty, waterless shitstorm." (It likely wouldn't be, said Musk, as there is ice on Mars.)

While Musk might not have loved being asked about Mars poop, it was certainly enthralling for the internet.

Someone is seriously pitching a Funny or Die series to Elon Musk right now? This ain't a Kennedy moon mission speech, after all. — Andrew Freedman (@afreedma) September 27, 2016

The Q&A session following the #SpaceX #Mars announcement is a huge argument in favour of accredited and skilled journalists. #IAC2016 — Alasdair Allan (@aallan) September 27, 2016

Meanwhile, as the audience questions pile up, Elon Musk seriously reconsiders whether or not he goes on the first ship to Mars himself. — Les Orchard (ϟ_–) (@lmorchard) September 27, 2016

Hearing about #SpaceX #Mars plans - so much hope for humanity. Hearing some of the questions during Q&A - still a lot of work to do on earth — Carol Chen (@cybette) September 27, 2016

Watch Musk's full remarks below.