KTE:
I posted the message on the 6th of April.
I don't know why Oldman reply 1 month later.
So conclusion is the Sunday is refering to the Sunday after 6th of April. Oldman turn up for the outing. That means he go for the outing without replying to the post at that time. He replied say he going after he went for the outing.
hahahahaha
hahahahaha
hahahahaha x 100
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It is true that we don't know what we have got until we lose it
It is also true that we don't know what we have been missing until it arrives.