That was when Thor realized he should be doing more talking too, instead of tugging Loki up off the ground and things, especially since he was kind of supposed to be sticking needles into horses and...
...He'd just handed Jane pointy things without really looking to see which way he'd been doing that, hadn't he?
"Pleease tell me I didn't stick my supervisor with vaccine." he muttered, looking like he was torn between being amused and horrified. Amused because, well, it WAS kind of funny. But on the other hand, it was horse vaccine, and he shouldn't be fucking around here.