One ready-made excuse

Take this and vanish gracefully.

I am away from routine communication for a short period. I am away collecting sunburn, questionable snacks, and plausible deniability. If this relates to approvals, deck revisions, or stakeholder choreography, it will wait. A reply will follow when normal operations resume. For time-sensitive work, reach out to the broader team mailbox. Thanks for your flexibility.

Professionally ignoring you with the help of Half Baked Out of Office
https://ooo.halfbakedidea.ca?ref=copy

Tweak it, steal it, disappear for a while. Leave the breadcrumb if it feels charming.

Keep the same energy

More in this vein

If this one isn't quite it

Other ways to duck out

Pick one for me