Who's been looking at MY tits?

I'm a massive fan of slogan t-shirts and many of you will already know about my favourite - "Social Networking Ruined My Life" - which is, more often than not, my Facebook profile picture.  I have got plenty of t-shirts with unusual images or slogans on them - the weirder the better.  My favourites include:
NEWSFLASH: I am special and will never be one of you
Life is not a popularity contents... Oh, wait, yes it is
Boomerangs are making a comeback
Video games ruined my life.  Good job I have another two [followed by two red hearts and one faded out heart]
I love them.  I think they are fun.  I believe they add a bit of color and humour to the day.

Until this weekend, that is.

We were in a flooring shop and I was wearing my "NEWSFLASH" t-shirt.  The shop was empty and we were stood at the till.  One of the (male) shop assistants said, "Can I ask you a question?  Why is it that you can wear a t-shirt with writing on it but when we try and read it we get accused of looking at your ti... [he searches for a better word] chest?"

I'd never thought about it in this way and now I'm over-thinking the whole situation.  It was a genuine question but asked in a lighthearted manner.  And if I'm being totally honest, I'd never noticed anyone, male or female, looking at my tits whilst wearing one of these t-shirts.  But then I don't ever feel that I am the sort of person who experiences that type of attention anyway. 

Slogans are meant to be read but am I subconsciously attention seeking?