^^ I wouldn't want that to happen to me, una matatakot ako sa lakas ng bad vibes sent my way although hmmm... I can think of several people gustong gusto ako itumba. hahahaha
also I wouldn't want that happening coz all my crystals, I got when I was happy, not stressed... talagang blissful nga when I set out to look and buy; or given by a favorite sister who shares my interest in crystals.
Pero, WILDBUTTERFLY26, I have had beads but not entire bracelets/necklaces/pendants break on me. Coz they all clank on my wrist, lol.
Para hindi magka breakage, mahal nga quality crystals as WILDBUTTERFLY26 says:
LUNAYSOL, I have a BRONZITE bracelet to fling back 3x back to source bad vibes sent my way.
I also have MOLDAVITE, or teka, I am not sure now if that is the name of that flesh-blush colored crystal na acts as a magnifier. Itabi mo sa another crystal, it will magnify or make stronger the vibrations of that crystal tinabihan. So, that should take care of bad vibes that certain crystals protect you against, or deflect.

(I am still searching for my little book)
How do I choose which crystal to wear for the day?
Instinctively. (I do not color match with my outfits.)
I always wear a clear crystal bracelet of round beads with gold threads inside kasi lol suerte sa business! oo, when Chinese or Indian people who know crystals see it.. pinag-iinitan, buy from me daw or where did I buy? (Crystal World at The Venetian - Macau. na swertehan ko lang coz it is really full of really very gold threads. Pero grrr at that time, I did not feel ok to buy another expensive bracelet -- full of red threads! shucks, to-date going 2 years na, hindi pa ko nakakita uli ng ganon, and I have even been back to that Venetian store several times na)
Then I just pile on what calls out to me. Pag panahon ng rages .. that blue angel lace to tapyas my rages. Pag lowbatt -- citrine, or pag busy -- citrine din. Pag kulang ako sa goodwill to all men, amethyst. Pag alam ko may meeting ako hostile yung kabila, or hindi maganda pag uusapan, or I feel threatenedd which takes a lot coz ako usually threatening, lol) -- amethyst never fails me. Most of the time, ametrine is my favorite -- so beautiful, the gold and deep violet combination.
Pero, LUNAYSOL, yes there are times when I wear a certain crystal for a certain ailment. surprisingly, it clears up fast. Lalo na if you wear it to bed around your neck.
WILDBUTTERFLY26, it does not matter que malaki or maliit your crystals. But the clearer, or better quality, the better its vibrations, IMO. So, meron akong small ga-paminta crystals I wear to bed, pag naisipan ko (so subconsciously, means kelangan ko wear), small and short around the neck.. so looks like a thin gold chain, ganon lang, and comfortable.