Once I shared the spice with a friend who stood up and yelled. This sort of thing is a distinct possibility, as noted in the above posts.

Outdoor DMT trips can be absolutely lovely. Having a friend along is a good way to deal with the unexpected while you are incapacitated, but can also be distracting. If you know of a place where there is really no chance of interruption, a solo trip is often going to be the purest experience.