Could we, perhaps, do battle with a pack of pretty flowers or soft bunnies next time?

Today, the class was once again on the open plains, under that eerie green sky. In the distance, a multi-vortex tornado was raging.

"Behold," Thor told his students, "the dead man walking. It is said that the Native American tribes of the plains held the wisdom that if you saw it, you were about to die, which is not inaccurate, especially in an era before modern forecasting and storm shelters. Do not fear, we are quite safe. This is a simulation, and even if it were not, I am a god of storms. What you are actually looking at is a multi-vortex tornado, a rare form of tornado that only happens with the strongest of storms, as a phase they go through before reaching their greatest strength. The best-known incidence of a dead man walking was the tornado that hit Jarrell, Texas on May 27, 1997--an F5, the strongest on the modern Fujita scale for measuring tornadic strength. An image was taken in which two vortices resemble legs, while a third resembles the scythe commonly seen in imagery of Death, though the phenomenon has been observed on many other occasions.

"What can you do if you see the dead man walking, or, more practically, if you have become aware through an alert or news broadcast that a tornado is headed for your location? You can seek shelter in a basement or the lowest floor of the building, in an interior room with no windows. If you are in a manufactured building, such as a mobile home, it is unsafe. Seek shelter elsewhere. If you are traveling in a vehicle, and have no other options, get out of the vehicle and lay down in a ditch. It is better than nothing. And then you wait, and you pray." After a moment for that to sink in, he asked, "Are there any questions?"

When any questions had been dealt with, Thor decreed that, "Class is dismissed. Enjoy your vacation. And remember to wear sunscreen!"

"We're going on a trip soon," Don told his students, "so I thought this would be the perfect opportunity to talk about some sun safety information." Especially considering where the trip was going to be to. "A sunburn isn't just a temporary painful inconvenience, although it's definitely also that. The sun emits radiation, which is...another class." Maybe one with Tony Stark. "Over time, damage to your skin from the sun can lead to skin cancer. Wearing protective clothing, like long sleeves and a hat, is a good idea, and you should always wear sunscreen, which is usually found in a lotion form but can also be found in stick or spray format, or even a powder, which is good for things like the part in your hair." Don showed them a bottle and explained that, "This number is the SPF, or sun protection factor, number. The higher it is, the more radiation from the sun the sunscreen will block from getting to your skin.

"I also want to talk about heat exhaustion and heat stroke," Don continued, and proceeded to handwavily discuss those topics in more detail. When he was done he asked, "Are there any questions?" Whether there were or weren't, he wrapped with, "Please take a bottle of sunscreen with you when you leave."