getting chatted up by a guy who thinks it clever to engage conversation by observing that your plaid shirt is almost identical to a shirt he wore for his confirmation. The situation is made even more awkward by the fact he hurt his foot that morning playing pretentious tennis; you might feel guilty leaving him stranded. The pinnacle of awkwardness occurs when he opens his mouth, you think he is trying to tell you something, lean in towards him and he “lobs the gob”.
In this situation I recommend informing him you feel “uncomfortable”. Do a runner!