For a high dividend-yield stock like TGA, what happens to the SP on a day-to-day basis should be of little concern. Focus on the health and long-term prospects of the business. It is the yield that allows one to be patient, and perhaps take a larger position than one would for a low-to-no dividend-yield stock. Stuffing around with small positions is a waste of time - OK for convent girls with spare lunch money.
The current sell off reminds me of the situation circa April-June 2012 when PPT made the decision to exit the share register, and dumped a few million shares at circa $1.40 - an SP that tempted me to borrow $60K from family, and buy. The dividend yield on that $60K investment has been very good - namely: