To anyone who sees this, thank you simply for paying it notice. Created an account just because I had to ask a question. Sorry if the answer to it is already considered obvious, but I cannot for the life of me find such an exact answer after scouring the messageboards for hours.
If you are riding a mount and have already had it use its standard action on your turn, can you still have the rider use the rhino charge feat in order to ready a charge as a standard action, then have the mount and rider still charge together when whatever condition you've set for the readied action is met, before the start of your next turn? I'd imagine that the answer might be no, as it could be considered a way for the rider to cheat an extra action out of his mount, but wanted to make sure. Perhaps the fact that I might just be the only person to ask this question might be testament to how silly it is, but still.
Thank you again for your time