Gmail ads are trying to sell me “Baby Rabbit Complement Tissue — Culture Grade, Low Endotoxin.” Best I can tell, this would be used for “bacteriocidal, cytotoxicity and depletion/purging assays especially in cancer, transplantation studies, and vaccine quality control and manufacturing.” What casual gmail user decides, Oh! Perfect! I’ve been looking for a new supplier for my vaccine manufacturing supplies?! And if the answer to that last question is you, then we are no longer friends.