Mike Harris wrote:

Okay, the second one is that the poor guy (his name's Charlie) has an
upper respiratory infection. He was sneezing last night yet energetic,
so we thought it might just be him getting some anesthetic out of his
system. But when I came in today, he was sneezing, had discharge from
his eyes, kept having occasional snot (cutely enough, it'd come out as a
bubble, pop, and he'd bat his own nose, annoyed at the sensation), and
seems lethargic. He also does not seem to be eating much.

Sounds like a trip to the vet for antibiotics might be in order.

Back in July I trapped a cute tiny orange tabby kitten who was living
under the bushes at the office
(http://www.webfolks.us/dan/photos/sammy.html). When I trapped him he
had a little bit of discharge from his eyes and just the slightest bit
of a runny nose. First thing I did once I trapped him was run him to the
vet for a checkup - I had 3 other cats at home and didn't want to bring
a possibly infectious kitten into their midst.

The vet kept the kitten for 3 days (at my request). He got antibiotic
treatment the whole time he was there, and I was given two more weeks of
oral meds to administer. Turns out that he was REALLY sick - it was a
good thing I'd trapped him when I did.

If finances prove to be an issue, a lot of vets will accept postdated
checques or will work with you to make payment arrangements.