The biggest problem for tripods. Losing that stopper. Well you could make another one if you can.

EDIT:
Oooh. The "Comment Posted" Thingy is now a small window up top... NEAT.

If your a normal person you just put up with having to hold your camera a bit different or fashion a replacement piece. If your obsessive-compulsive you buy yourself an entirely new tripod.

@The Vault Dweller
That or you'd take the other two off to make them match. Time to get the Gorilla Tape out and wrap it around the missing nub. Do they even sell Gorilla tape in Japan?

Naturally, I wasn't going to climb over the handrail to go down and get it, so I resigned myself to the loss. I didn't think it would come off. (^^;)

Reader-added tags include "An act of the Tengu" (boilerplate explanation for mysterious events), "Tip-slips happen!", and "The living goddess hath spoken...thou shalt give up on using rubber feet!!" (The readers do love their El Shaddai riffs.)

The survey's mind isn't in the gutter, it's in the Underground:

If this were Chireiden!
• I'd take spectacular shots of Kisume-san
• I'd sing a duet with Yamame-san
• I'd have a drinking contest with Paruparu and/or Big Sis Yuugi
• I'd have a trauma recollection festival with Satori-san and company
• I'd be stalked by Koishi

Probably get stalked. You'll never know why.

Aw, poor Mizuki-san, it also happened to me, but never with a camera
Poll: EVERYTHING, and then end up with liver poisoning since, you know, it'd be a contest against Yuugi

RiderFan said:

@The Vault Dweller
That or you'd take the other two off to make them match. Time to get the Gorilla Tape out and wrap it around the missing nub. Do they even sell Gorilla tape in Japan?

YOU ARE A GENIUS.

Oh dear, I always have a fear of something like this happening to my phone or wallet every time I'm near a cliff or river. At least it was only the stopper; there's places that sell those by themselves, at least in the states. Maybe not in Japan; don't worry, Kogasa-san, you can still take good pictures, just pull off the other stoppers.

For the poll, challenging Yuugi sounds like fun.

This is a rather frontal and foreground depiction of Sanaewife, so it's possible to get a good look. That hasn't happened in a while, I feel.

As for the poll, a drinking contest with Paruparu sounds great because it's not as unbalanced as the alternative, I'm a big fan of Paruparu and since I'm a really bad drinker she wouldn't feel so bad about herself.
Whether I'd be stalked or not isn't up to me, right?

See, this is the reason I keep everything in a bag with functional zippers. Such misfortune, Kogasa-san.

For the poll, whatever you do, you'll end up with Stalker Koishi anyway. So, all of the above.

Moonspeaker said:
"The living goddess hath spoken...thou shalt give up on using rubber feet!!" (The readers do love their El Shaddai riffs.)

Is it me, or is Warugaki's epic misfortune is getting onto Mizuki-san? I can't tell if this happens after their fated encounter but still...

As for the pool, a singing duet with Yamame sounds lovely~

The_Vault_Dweller said:

YOU ARE A GENIUS.

As you can see, duct tape/gorilla tape solves everything. If it can't, then God help you.

From the thumbnail, I was afraid that it was the camera that fell into the water instead. Considering your luck, Mizuki-sensei, you should be glad it was just a rubber tripod foot.

I had the same problem once with my Tuba stand... Got me some walking cane tips to replace that I did.

Replacing this kind of oddly shaped piece is why 3d printers are so useful. Recently lost nearly all the knobs off my Gakken kit-built analog synthesizer -- but since I'm a member of a local hackerspace/makerspace, I'm printing new ones.