nah, just joking
Never misplaced a thing in any MM game - though I tend to forget where I put things, as I generally store too much as the game progresses.
The Temple of the Sun is btw. a good place, if not the best, to store lots of stuff and to place a beacon for Bootleg Bay area.
Likewise is Clanker's Laboratory in MM7 a good storing place - even better than Castle Harmondale, I think.
In MM8 you have plenty of storage, the more members you gather in the Adventurer's Inn the better - you even get "dolls" for your unused artefacts.