Amidst all of the Father’s Day posts and expressions of gratitude and love, Mötley Crüe musician Tommy Lee and his son Brandon Lee exchanged unkindly words on their relationship over the years.

It all began with Tommy’s post, honoring his father but commenting on his sons and their lack of “morals” in the lengthy caption:

Happy Father’s Day fellas! I’m not gonna sit here and post some fluffed up bullshit for the public to read…. I’m gonna be honest- Being a father ain’t easy! I’m so tired of the fake shit I keep seeing all over IG… let’s get real: It’s a rollercoaster ok? My father taught me to respect everyone and everything and to take care of those that I loved. He taught me to appreciate my possessions, and to be grateful for the things I was given. I’ve fucked up at times but I’ve always bounced back. When I had a child, my first child, I wanted to instill those same virtues into him. Sometimes I feel like I failed as a father, because my kids don’t know the value of things. If they break something, they don’t care because they know they’ll just get a new one, if they hurt someone, they don’t care because so many people tell them it’s OK. I never wanted this for my kids. I know I’m not fully to blame, because their mom has a lot to do with it, enabling bad behavior and buying them things when they weren’t good, but I guess I hoped at the end of the day they would end up kind. I love them dearly, don’t get me wrong, but man, sometimes it’s really tough to watch your kids grow up without those morals. Nothing can really prepare you for fatherhood …. I love my boys but they can be assholes too…and that’s the truth (Cue Honest Guy music)

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Tommy insinuated that his two sons Brandon and Dylan Lee have a lack of respect for both people and replaceable items, feeling as though he failed as a father at times.

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Following his father’s trend of skipping the “fake s––t,” Brandon screenshotted Tommy’s caption and answered it in his own Instagram post, as seen below.

Brandon’s fiery response touched on an alleged incident when he knocked Tommy out unconscious, seemingly due to comments such as those regarding the sons’ behavior. Brandon shared this video of his father laid out on the ground:

Look a little sleepy there Tommy. 😴

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In a since-deleted post to TMZ, Tommy said, “My fiancé and I were in bed when my son busted into the room and assaulted me. I asked him to leave the house and he knocked me unconscious.”

In response to the Father’s Day feud, Tommy’s wife Brittany Furlan commented on the video, “Brandon…. This is too much. Your dad loves you and you love your dad. Please stop. Everyone is clearly hurt. Enough is enough.”