Our host plan has given us 1 MySQL database. I want to be able to use this database for our website to store test results, comments etc. We also develop some websites for our customers, is it a bad idea to store their data in our database too, even if it's not related to our data in any way at all? This would save upgrading to the next plan up or buying extra databases, but I don't want to have a mess of data at the same time. Thanks.