Problem at work Options

[jojobombiest]

Hello, I haven't posted here in quite some time but I couldn't think of anywhere else to ask for help for such a weird question, and everyone on these forums is usually very helpful, so here goes I was scheduled as a substitute at work today (if someone called in sick I replace them). Nobody did, so they asked me, do you want to work? I wasn't sure how to answer it, I didn't really give them a straight answer so they asked me again. I gave another stupid response so he said "OK just go clock out." I was kind of shocked but went ahead and did it anyway not really thinking, as I walked out I gave them a cheerful "goodnight" and looked back to see my boss lipping "shady" to the other supervisor. I'm not sure whether to apologize or what to do because I really like my job and would like things to keep going smoothly.