...for my niece to daycare. This is the bag that she normally takes with her to daycare. However, I was not aware that the bag was previously used as a holding bag for marijuana for a short time period (when someone was babysitting her days ago, they placed the marijuana in there just to have somewhere to put it, I guess)...until it was too late. My sister, who was at work, called me and angrily asked me why I took this particular bag when another one was laid out for me to grab with my niece's essentials in it. I honestly was not thinking. This other bag WAS laid out. I DID see it. But I only wondered briefly why this bag was laid out where my niece's things usually are instead of the other bag. Yet, I just grabbed the usual bag anyways and just shoved my niece's pull-ups, baby wipes, and such in the bag. It only lasted 5 seconds, I didn't smell anything at all. No pungent smell. Nothing at all. But granted if I had known that weed was in the bag at one point in time, I would not have used that bag. My sister didn't tell me anything about the bag having a weed smell in it.

So, unaware of the drama that would ensue hours later, I took the bag to my nieces' daycare, dropped her off. I went on with my day...until my sister called me to tell me that they had my niece's bag in the main office of the daycare. She is upset. And I'm upset because I did not mean for this to happen, if I only would've known that darn weed was in that bag at one point in time.
This is still ongoing...I still don't know what's going to happen when my sister picks my niece up in less than 2 hours. But I just hope nothing horrible happens.

Does anybody know what could happen in this situation? It was an honest mistake on my part. It's my fault and it's the idiot's fault who put the weed in the backpack to begin with. I just hope they don't punish my sister or suspend my niece from the daycare. And I really hope the cops don't get involved. I really did not know that this was going to happen at all. I'm flabbergasted. Nothing has ever happened like this before. My sister does not smoke weed. Now they're probably going to think she does. She did YELL at the person who put the weed in the bag in the first place.

Is there any way for her to deny anything? Plausible deniability? Something like that? They only have proof of smell. Nothing else.

Can someone give me advice? I f'ed up pretty bad and I didn't even realize it until it was too late. Man...I feel so bad right now.