Regarding the following expression, we can realize that the period character is of dual functionality in its nature: partly denoting the abbreviation, partly being used to end the sentence.
I like rideable animals such as donkeys, horsies, cowsies etc.
Now, if we reconstruct the sentence in the following way, we'll be forced to use separate period characters for each of the functions and it looks pretty weird, at least to me. I wonder if it's the correct usage at all and what a correct alternative might be.
I like rideable animals (donkeys, horsies, cowsies etc.).
Please note that I'm not in any way asking about how to express the thought contained in the example nor that how to circumvent the situation (by rephrasing it as two different sentences or such).