Disclaimer - Transformers (c) Hasbro. Also, Murphy's laws aren't mine.

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Five second fuses always burn in three seconds.

Wheeljack whistled to himself as he worked on a new bomb for Jazz. Usually his bombs had timers, but this time he wanted to try something new. The humans used to have something on their bombs called fuses. So, lo and behold, here he was, trying to make one. He finished the bomb, and lit it. Supposedly, the fuse was supposed to burn in ten seconds, but the flame went down the fuse faster than that.

The fuse burned in five.

Blam!

'Jack onlined his optics. "Ow." he muttered, sitting up. He quickly ran a self-diagnostic. "Okay, I'm good." he said, standing. He walked over to where his desk had stood. What was left was a smoldering pile of ash.

"'Jack!"

Wheeljack looked over and grinned over at Ratchet, headfins flashing a merry blue. "Hey, Ratch!"

"What the pit happened?" Ratchet demanded, stepping over various tools and instruments to get to the inventor. "Are you all right?"

"I'm fine! Just dirty." Wheeljack said cheerfully, indicating his soot-smeared frame.

"You didn't answer my question. What happened?" Ratchet asked, pulling out a medical scanner and scanning Wheeljack.

"I'm trying something called a fuse. Apparently humans used them, and I wanted to see if I could use them for my bombs." He chuckled when Ratchet shuttered his optics for a moment. "Ratch?"

"Keep going." Ratchet said.

"Well, I lit the fuse, and it burned faster than I anticipated, and bang!" Jack said, emphasising the bang with a clap.

Ratchet shook his head, and dragged Jack out of the lab. "You're going to go shower, get clean, then come see me."

"Okay!" Jack said cheerfully, walking down the hall towards the washracks.

Ratchet watched him go, shaking his head. He'd done some searching, and apparently his closest friend had also been hit with Murphy's laws. Oh, well.

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A/N - And that brings an end to this one. I'm sorry it's so short, but hey, this is the way Jack wanted it to be written, and since he's bigger than me, I'm listening. Well, read, review, and let me know what you think!