1. Hates leaving his Knockout alone2. Sometimes leaves base just to fight Bulkhead
3. When Knockout's working late Breakdown will sleep with a plush of him
4. Is always careful when it comes to Knockout's finish and will buff it daily for him
5. Has suspected Knockout's loyalty to him as Knockout flirts with everyone but he secretly knows Knockout is doing it to make him jealous
6. Has multiple books on parenting just in case
7. Always has a buffer on him
8. Steal expensive wax for Knockout
9. If Knockout has worked a long shift Breakdown will always give him someone of his (Breakdowns) energon
10. He's hella insecure about his missing eye
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My Tfp headcanons
Non-FictionMy headcanons for transformers prime it's mainly decepticons (This is my Au so please don't hate or question headcanons please and thank you) cover art not mine