This troper once became a Deus Ex Machine when he woke his friend up who would've overslept his finals.

This troper, one day, was supposed to meet up with a friend before class to work on homework. That morning, feeling in need of more sleep, he decided to sleep some more. Instead of oversleeping, however, he was saved by his phone going off due to an unrelated call from his haircut place. It just so happened that he had set his phone's ring volume to maximum, making it loud enough to wake him up.

This troper was just leaving work when I crashed and totaled my first car. With no cell phone and no friends in the area, I thought I was screwed. Cue two friends I hadn't seen in years arriving on the scene instantly to give me a ride home. Turned out the crash happened in front of their house; they'd been living across the street from my workplace in my hometown for months and none of us had known it.

Don't we all just love it when the teacher's absent on the day the paper's due?

This troper, designated to bring the construction paper for his group's project, forgot to bring it on the day itself. Cue in a guy from the other group who, out of utter craziness, brought TWO pieces of construction paper. Asked the guy to give me one, and problem solved.

This troper has an exam he has to do tomorrow but he has not revised in the slightest. I just went to the bathroom, to find it... Uh.. Half-digested. Also I threw up. Woo!

When I was younger, I managed to somehow spin in the air and land on my feet, after my friend pushed me off a ledge. On a later date, another guy put a firecracker in my jacket. I thought my neck would explode and just stood there. Nope. It just made a hole in my jacket.

When I was much younger, my dad was holding me down while my sister was running up to spank me. Then I farted just as she was winding her hand back.

Played with when this troper's 8th grade drama class was doing improv. The scenario was four co-workers stuck in an elevator. However, the class was going to end in a minute or so, so one guy came up with the brilliant line of "Wait! I have an axe in my suitcase!" and then chopped open the elevator doors.

This troper once organized a soccer team to play in a tournament where all the money spent on organizing would be used to help cure cancer. Day of the tournament comes, troper throws up, and is unable to play.

One of the things that I'm revising in my novel is one of these that happened by accident. One of the villains did something that caused a very short earthquake, and I realized that the scene where this happened happened at the exact same time that one of the secondary protagonists was fighting TheDragon -- and that the protagonist doing the fighting had a tendency to do a lot of jumping around while fighting. The end result: An earthquake happened that knocked TheDragon off her feet, while leaving the protagonist untouched (Because she was in the air at the time). It didn't really resolve the situation (TheDragon ended up winning the fight anyway), but it came off as contrived regardless.

A reality is stranger then fiction moments; Once while working from home (my job involves lots of computer work, I'm here at TVTropes alot) I fell asleep during a 15min break by mistake, my phone went off due to an unrelated event, woke me up exactly 15min after I started my break, and saved my hide.

This troper WAS the Deus Ex Machina once. We were playing a game related to American history. Our team was dominating so our teacher decided to mix things up and send the two smartest kids in the class (me and a friend) to the other class (we had split up our classes to play against each other.) The moment we walked in, our classmates were overjoyed, because they were really behind. The moment the teacher started again, we knew the answers. BOTH halves of our class beat the other class in the end.