This was surprising.

[WPW717]

Went to a recent acquaintance’s home to swim. There were 6 other people invited. 5 females. I changed in an extra bedroom. Others did too, taking turns. I distinctly remember placing my bra in a travel bag at the bottom & my pants & shirt over the bra.

I was the last one to change on leaving later that day. Only to find that my bra was missing. Searched under the bed & any conceivable place it could be. There weren’t many. My wallet & the money & credit cards were all there. 

Unlikely some other person mistook my bra for hers. It was buried under my other clothes at the bottom of a bag. Life’s mysteries do confound me at times. Thoughts?

[Midagemoobs2]

If you are sure you had it and put it at the bottom of the bag, I would be concerned that someone was rummaging through my belongings at all - that's wierd... let alone removing something - that even wierder.  Best of luck in sorting this out.

[blad]

Were others aware that you wore a bra? Were there visible bra marks when you went swimming along with your obvious breasts?

[WPW717]

100% positive I placed it at the bottom of my bag. 
As for anyone knowing I wear a bra, no. I have told no one concerning that facet of me. There is serious doubt anyone saw any markings or lines as I wore a rash shirt. It works as well as a gynecomastia shirt because I can’t get out of it without help. My wife provides that service. It hides the breasts well as I am very East / West with large roots.

It’s a mystery!

[Parity]

That is crazy.  It sounds like a smaller gathering of people so you must know them somewhat.  No looks or smiles from anyone?  They know and that's their game, keeping you guessing.  I have some pricey bra and would not want them missing either.  Smile and move on.

[taxmapper]

Gremlins, or fae.   They steal stuff for fun.   

The number of times I have put something down ont he table, turnaround and poof. Literally gone for hours or days. To reappear in the same spot I looked 11,342 times. 

[WPW717]

Wife has met on of the women for coffee today, another called her on the phone to discuss holsters for concealment.

No indications yet anyone is playing around with a game in mind.

We’re new in town & starting to socialize after a cross country move & Setting up a business.

So far the Tax’s fae comment stands the test of Occum’s Razor.