The squid would do more damage than letting me go to work.
The spider would scare more people from the bar. And, they may hold a grudge against you for loosing such a creature. On the other hand, I wouldn't mind at all. I'm not sure how long you'd have to wait for a huntsman spider to create web, as they don't actually make a web. As to funnel-webs, I'm not sure about the web, but they make burrows - by all means, IF they do make web, it's all up to you to put your finger in their burrow to collect it...
Manacles, well... Thanks for the warning.
*grabs manacle keys from under counter*
Hmm, no pockets without pants...
*stores keys securely on self*